A plane conducting the aerial spraying of pesticides, flies over a swarm of desert locusts in Lemasulani village, Samburu County, Kenya January 17, 2020. Picture taken January 17, 2020. REUTERS/Njeri Mwangi 

A plane conducting the aerial spraying of pesticides, flies over a swarm of desert locusts in Lemasulani village, Samburu County, Kenya January 17, 2020. Picture taken January 17, 2020. REUTERS/Njeri Mwangi 

A farmer shows army worms that he picked in his maize field in Chikwawa District, Malawi March 19, 2018. Picture taken March 19, 2018. REUTERS/Eldson Chagara 

A local farmer shows the moths that he captured in his maize field in Chikwawa District, Malawi March 19, 2018. Picture taken March 19, 2018. REUTERS/Eldson Chagara 

A local farmer pours Neem leaves concoction into a sprayer in her village in Chikwawa District, Malawi March 19, 2018. Picture taken March 19,2018. REUTERS/Eldson Chagara 

A farmer picks an army worm in his maize field in Chikwawa District, Malawi March 19, 2018. Picture taken March 19, 2018. REUTERS/Eldon Chagara 

A farmer displays army worms that he picked in his maize field in Chikwawa District, Malawi March 19, 2018. Picture taken March 19, 2018. REUTERS/Eldson Chagara 

Public health workers spray insecticide on a rain water pool amid fears of a new cholera outbreak in Sanaa, Yemen, June 4, 2018. REUTERS/Khaled Abdullah 

A health agent uses pesticide next to Brazilian soldiers as they conduct an inspection for the Aedes aegypti mosquito in Rio de Janeiro, Brazil, February 15, 2016. REUTERS/Sergio Moraes

A municipal worker sprays insecticide at the neighborhood of Imbiribeira in Recife, Brazil, January 26, 2016. The operation is part of the city's effort to prevent the spread of Zika's vector, the Aedes aegypti mosquito, according to a statement from Municipal Health Secretary. REUTERS/Ueslei Marcelino 

A Palestinian farmer sprays farm chemicals on a tree in a field at the former Jewish settlement of Neve Dekalim, in Khan Younis in the southern Gaza Strip August 6, 2015. Picture taken August 6, 2015. To match Insight ISRAEL-GAZA/DISENGAGEMENT REUTERS/Ibraheem Abu Mustafa 

CEO Michael Mack of Swiss agrochemicals maker Syngenta leaves after a news conference to present the half-year results in Basel July 23, 2015. Syngenta and unwanted suitor Monsanto squabbled over an earnings report from the Swiss pesticides maker on Thursday, with both sides claiming it strengthened their case in a $45 billion takeover battle. REUTERS/Arnd Wiegmann

CEO Michael Mack of Swiss agrochemicals maker Syngenta addresses a news conference to present the half-year results in Basel July 23, 2015. Syngenta and unwanted suitor Monsanto squabbled over an earnings report from the Swiss pesticides maker on Thursday, with both sides claiming it strengthened their case in a $45 billion takeover battle. REUTERS/Arnd Wiegmann

CFO John Ramsay sits beside as CEO Michael Mack (R) of Swiss agrochemicals maker Syngenta addresses a news conference to present the half-year results in Basel July 23, 2015. Syngenta and unwanted suitor Monsanto squabbled over an earnings report from the Swiss pesticides maker on Thursday, with both sides claiming it strengthened their case in a $45 billion takeover battle. REUTERS/Arnd Wiegmann

CEO Michael Mack of Swiss agrochemicals maker Syngenta addresses a news conference to present the half-year results in Basel July 23, 2015. Syngenta and unwanted suitor Monsanto squabbled over an earnings report from the Swiss pesticides maker on Thursday, with both sides claiming it strengthened their case in a $45 billion takeover battle. REUTERS/Arnd Wiegmann

CFO John Ramsay sits beside as CEO Michael Mack (R) of Swiss agrochemicals maker Syngenta addresses a news conference to present the half-year results in Basel July 23, 2015. Syngenta and unwanted suitor Monsanto squabbled over an earnings report from the Swiss pesticides maker on Thursday, with both sides claiming it strengthened their case in a $45 billion takeover battle. REUTERS/Arnd Wiegmann

A worker for the waste management company 'Sukleen' puts pesticide and disinfectant on
a pile of garbage along a street in Beirut, Lebanon July 22, 2015. The streets of Beirut are quickly becoming host to growing mountain of garbage after a crisis in the gvernment’s waste management policy led to a halt in garbage collection and raising concerns for health and environmental adverse effects. REUTERS/Jamal Saidi 

A resident sprays pesticide in a cabbage field as ash spews from Mount Sinabung volcano during an eruption at Tiga Serangkai village in Karo Regency, North Sumatra province, Indonesia June 24, 2015. More than 10,000 people from 12 villages, who are living around the slopes of Mount Sinabung, left their homes and moved to refugee camps, local media reported. REUTERS/Beawiharta 

An Indonesian official sprays insecticide for mosquitos at a shelter in Kuala Langsa, in Indonesia's Aceh Province, May 19, 2015. United Nations agencies urged Indonesia, Malaysia and Thailand on Tuesday to step up sea rescue operations and stop preventing thousands of desperate migrants from reaching land. REUTERS/Beawiharta TPX IMAGES OF THE DAY

The last rays of sunlight illuminate an American Bald Eagle as it soars above the Hudson River just before sunset near Croton Point in Croton-on-Hudson, New York, March 23, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 23, 2015. REUTERS/Mike Segar 

An American Bald Eagle perches on a branch above the Hudson River at Kingston Point in Kingston, New York, March 23, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 23, 2015. REUTERS/Mike Segar 

An American Bald Eagle soars above the trees and the Hudson River near Croton Point in Croton-on-Hudson, New York, March 15, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 15, 2015. REUTERS/Mike Segar 

Two American Bald Eagles perch near an open water break in the ice in the Hudson river as they hunt for fish near Barrytown, New York, March 23, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 23, 2015. REUTERS/Mike Segar 

An American Bald Eagle perches on a branch above the Hudson river near Verplank, New York, March 19, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 19, 2015. REUTERS/Mike Segar 

Two American Bald Eagles soar over the Hudson river near West Point, New York, March 15, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 15, 2015. REUTERS/Mike Segar 

An American Bald Eagle takes off from its perch high in a pine tree above the Hudson River at Croton Point in Croton on Hudson, New York, March 19, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 19, 2015. REUTERS/Mike Segar 

An American Bald Eagle flies low in the trees as it hunts for fish by the east shore of the Hudson river near Croton Point in Croton-on Hudson, New York, March 19, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 19, 2015. REUTERS/Mike Segar 

An American Bald Eagle clutches its prey as it fishes off ice flows in the early morning at Croton Point in Croton-on Hudson, New York, March 15, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 15, 2015. REUTERS/Mike Segar 

An American Bald Eagle flies low in the trees as it hunts for fish by the east shore of the Hudson river near Croton Point in Croton-on Hudson, New York, March 19, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 19, 2015. REUTERS/Mike Segar 

An American Bald Eagle perches on ice flows in the early morning at Croton Point, in Croton-on Hudson, New York, March 15, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 15, 2015. REUTERS/Mike Segar 

An American Bald Eagle perches on a tree branch above the west shore of the Hudson river near Ulster, New York, March 23, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 23, 2015. REUTERS/Mike Segar 

An American Bald Eagle takes off from a branch in the early morning at Croton Point in Croton-on Hudson, New York, March 19, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 19, 2015. REUTERS/Mike Segar 

Two American Bald Eagles soar over the Hudson river near Croton Point in Croton-on Hudson, New York, March 15, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 15, 2015. REUTERS/Mike Segar 

An American Bald Eagle tilts its head back to screech as it perches on a branch in the early morning at Croton Point in Croton-on Hudson, New York, March 19, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 19, 2015. REUTERS/Mike Segar TPX IMAGES OF THE DAY

An American Bald Eagle soars over the Hudson river near Garrison, New York, March 23, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 23, 2015. REUTERS/Mike Segar 

Three American Bald Eagles stand on ice on the Hudson river near Barrytown, New York, March 23, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 23, 2015. REUTERS/Mike Segar 

An American Bald Eagle soars over the Hudson river near Barrytown, New York, March 23, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 23, 2015. REUTERS/Mike Segar 

An American Bald Eagle hovers over an open water break in the ice in the Hudson river as it hunts for fish near Barrytown, New York, March 23, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 23, 2015. REUTERS/Mike Segar 

An American Bald Eagle soars over an open water break in the ice in the Hudson river as it hunts for fish near Barrytown New York, March 23, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 23, 2015. REUTERS/Mike Segar 

An American Bald Eagle flies off a tree branch above the Hudson River at Kingston Point in Kingston, New York, March 23, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 23, 2015. REUTERS/Mike Segar 

An American Bald Eagle perches on a branch above the Hudson River at Kingston Point in Kingston, New York, March 23, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 23, 2015. REUTERS/Mike Segar 

An American Bald Eagle perches high in a pine tree above the Hudson River at Croton Point in Croton-on-Hudson, New York, March 19, 2015. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In 1976, there was reportedly only one known pair of nesting American Bald eagles left in New York State, according to the NY Department of Environmental Conservation. But, after decades of protection and conservation efforts the majestic birds, removed from the U.S. endangered species list in 2007, have successfully rebounded with many nesting along the shores of the lower Hudson river where in winter they use the river ice to fish from. Picture taken March 19, 2015. REUTERS/Mike Segar 

An American Bald Eagle takes off from a tree at Kingston Point Park along the West shore of the Hudson River in Kingston, New York March 23, 2015. An eaglet hatched in the Pennsylvania wild was seen for the first time on Wednesday by thousands who watched live footage of the fuzzy fledgling from a camera monitoring a resurgence of bald eagles in the northeastern United States. Bald eagles, which live only in North America, were nearly wiped out over the past century due to hunting, habitat destruction and DDT chemical poisoning, which caused their eggs to crack prematurely. In the United States, there are currently about 10,000 nesting pairs of bald eagles, about a fifth of the number when the birds were adopted as the national symbol in 1782, according to the U.S. Fish and Wildlife Service. Picture taken March 23, 2015. REUTERS/Mike Segar 

A farmer walks on a paddy field in Phat Tich village, outside Hanoi March 11, 2015. Asian rice prices weakened this week due to oversupply in Thailand while an ongoing stockpiling plan in Vietnam and sales across the border to China helped offset the decline in Vietnamese grain prices, traders said on Wednesday. REUTERS/Kham (VIETNAM - Tags: AGRICULTURE BUSINESS) 

A farmer sprays a mixture of fertilizer and pesticide onto his wheat crop on the outskirts of the western Indian city of Ahmedabad February 18, 2015. India may slash its food and fuel subsidy bill by about $8 billion in next week's budget, two sources said, but despite the impressive headline, the cut is not as radical as free market champions had hoped for in Prime Minister Narendra Modi's first full budget. REUTERS/Amit Dave (INDIA - Tags: BUSINESS FOOD POLITICS) 

A man sprays pesticides on a cotton field in Meeran Pur village, north of Karachi September 26, 2014. Women make up the bulk of Pakistan's half a million cotton producers, but labour rights activists say they are often exploited by overseers, who often withhold their wages and may subject some of them to sexual harassment. Many women work in Pakistan's cotton fields for less than $2 a day. Last year, a group of around 40 women decided their low wages could no longer cover food and clothing for their families so they did something almost unheard for poor working women in rural Pakistan - they went on strike. REUTERS/Akhtar Soomro (PAKISTAN - Tags: AGRICULTURE BUSINESS COMMODITIES EMPLOYMENT SOCIETY POVERTY)

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Former maintenance worker, Mohammed Yaqub, poses in his house with his old identity card from the defunct Union Carbide pesticide plant in Bhopal where he once worked November 13, 2014. On the night of December 2, 1984, the factory owned by the U.S. multinational Union Carbide Corporation accidentally leaked cyanide gas into the air, killing thousands of largely poor Indians in the central city of Bhopal. Thirty years on, the toxic legacy of this factory lives on, say human rights groups, as thousands of tonnes of hazardous waste remains buried underground . REUTERS/Danish Siddiqui (INDIA - Tags: ENVIRONMENT HEALTH DISASTER BUSINESS INDUSTRIAL AGRICULTURE TPX IMAGES OF THE DAY)

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Fifty-five-year-old Subna Bi (C), poses for a picture outside her house next to the abandoned former Union Carbide Corp pesticide plant in Bhopal November 15, 2014. On the night of December 2, 1984, the factory owned by the U.S. multinational Union Carbide Corporation accidentally leaked cyanide gas into the air, killing thousands of largely poor Indians in the central city of Bhopal. REUTERS/Danish Siddiqui (INDIA - Tags: ENVIRONMENT HEALTH DISASTER BUSINESS INDUSTRIAL AGRICULTURE TPX IMAGES OF THE DAY)

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Trees frame a rusting building at the abandoned former Union Carbide pesticide plant in Bhopal November 11, 2014. On the night of December 2, 1984, the factory owned by the U.S. multinational Union Carbide Corporation accidentally leaked cyanide gas into the air, killing thousands of largely poor Indians in the central city of Bhopal. REUTERS/Danish Siddiqui (INDIA - Tags: ENVIRONMENT HEALTH DISASTER BUSINESS INDUSTRIAL AGRICULTURE TPX IMAGES OF THE DAY)

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Victims of the Bhopal gas tragedy, a gas leak from a Union Carbide pesticide plant that killed at least 3500 people, shout slogans during a sit-in protest in New Delhi November 10, 2014. Hundreds of the victims on Monday held a sit-in protest and five women survivors of the tragedy started an indefinite hunger strike demanding additional compensation for all the affected people and revision of figures of death caused by the disaster 30 years ago, according to a media release. REUTERS/Adnan Abidi (INDIA - Tags: CIVIL UNREST DISASTER TPX IMAGES OF THE DAY) 

A farmer works in a tea field in Suoi Giang, northwest of Hanoi September 28, 2014. Photo taken September 28, 2014. REUTERS/Tuan DC (VIETNAM - Tags: AGRICULTURE BUSINESS) 

A pest control worker sprays insecticide to help control the spread of dengue fever carried by mosquitoes in Kuala Lumpur August 27, 2014. This year, Malaysia has seen a 200 percent increase in cases of dengue fever compared to the same period in 2013, local media reported. REUTERS/Olivia Harris (MALAYSIA - Tags: HEALTH SOCIETY) 

A farmer sprays pesticide in a paddy field near Subang, Indonesia's West Java province, May 27, 2014. Asia's governments are scrambling to head off the potential impact of a weather phenomenon that in the past has driven food prices to levels that sparked social unrest. They are aiming to reduce the impact of the so-called El Nino, a weather pattern that can bring drought to Australia, Southeast Asia and India. REUTERS/Beawiharta (INDONESIA - Tags: ENVIRONMENT AGRICULTURE) 

A farmer sprays pesticide in a rice paddy field near Subang, Indonesia's West Java province, May 27, 2014. Asia's governments are scrambling to head off the potential impact of a weather phenomenon that in the past has driven food prices to levels that sparked social unrest. They are aiming to reduce the impact of the so-called El Nino, a weather pattern that can bring drought to Australia, Southeast Asia and India. REUTERS/Beawiharta (INDONESIA - Tags: ENVIRONMENT AGRICULTURE TPX IMAGES OF THE DAY) 

A villager sprays pesticide as Mount Sinabung spews ash as seen from Naman Teran village in Karo district, Indonesia's North Sumatra province, November 28, 2013. Indonesia ordered the evacuation of 15,000 residents near the active volcano in the west of the vast archipelago on Sunday as authorities raised the alert for the emergency to the highest level. REUTERS/Beawiharta (INDONESIA - Tags: DISASTER ENVIRONMENT) 

A farmer sprays qat plants with pesticide on his farm on the outskirts of Sanaa, November 1, 2013. Many of Yemen's 25 million people chew qat leaves for their mild stimulant effect. The cultivation of this leafy plant is also a serious drain on water supplies in a country where 13 million people out of a population of some 24 million have no access to safe drinking water. REUTERS/Mohamed al-Sayaghi (YEMEN - Tags: AGRICULTURE BUSINESS) 

A farmer prepares pesticides to be applied to his qat plants on his farm on the outskirts of Sanaa, November 1, 2013. Many of Yemen's 25 million people chew qat leaves for their mild stimulant effect. The cultivation of this leafy plant is also a serious drain on water supplies in a country where 13 million people out of a population of some 24 million have no access to safe drinking water. REUTERS/Mohamed al-Sayaghi (YEMEN - Tags: AGRICULTURE BUSINESS) 

A worker sprays pesticide on his vegetable crops while Mount Sinabung spews ash and hot lava as it erupts in Karo district, Indonesia's north Sumatra province September 15, 2013. Around 1,000 people from six villages have been evacuated from their homes to a safety area after the volcano erupted and no casualties are reported, local media said on Sunday. REUTERS/YT Haryono (INDONESIA - Tags: DISASTER ENVIRONMENT AGRICULTURE) 

Syrian farmers work at an agricultural field in Wazzani village near the Lebanese-Israeli border, in south Lebanon July 29, 2013. REUTERS/Ali Hashisho (LEBANON - Tags: POLITICS AGRICULTURE)