Honey bees swarm on the honeycomb of a hive where honey is harvested atop the Tokyo Grain Exchange building in Tokyo's Nihonbashi district July 24, 2009. Honey was harvested from a hive which bees gathered honeydew from flowers in downtown Tokyo as part of "Nihonbashi Honeybee Salon Project" aimed to increase communication among the community, the Tokyo Grain Exchange said. REUTERS/Yuriko Nakao (JAPAN ANIMALS SOCIETY)

A woman shows off honey bees swarming on the honeycomb of a hive where honey is harvested atop the Tokyo Grain Exchange building in Toky's Nihonbashi district July 24, 2009. Honey was harvested from a hive which bees gathered honeydew from flowers in downtown Tokyo as part of "Nihonbashi Honeybee Salon Project" aimed to increase communication among the community, the Tokyo Grain Exchange said. REUTERS/Yuriko Nakao (JAPAN ANIMALS SOCIETY)

A labourer carries melons at a fruit market in the outskirts of Karachi May 13, 2009. REUTERS/Athar Hussain (PAKISTAN FOOD SOCIETY)

A pine tree branch infected with the Monophlebus Hellenicus insect is seen in Athens' Kesariani forest May 8, 2005. Millions of pine trees throughout Greece have been killed by the insect this year threating the country with a major environmental disaster. The outbreak has been triggered by Greek honey makers who introduced it in a bid to increase production as the insect produces a type of honeydew but it has since spread to other forests and nature reserves. Picture Taken May 8, 2005.

Dead pine trunks infected with the Monophlebus Hellenicus insect in Athens' Kesariani forest May 8, 2005. Millions of pine trees throughout Greece have been killed by the insect this year threatening the country with a major environmental disaster. The outbreak has been triggered by Greek honey makers who introduced it in a bid to increase production as the insect produces a type of honeydew but it has since spread to other forests and nature reserves. Picture taken May 8, 2005.

A dead pine tree branch infected with the Monophlebus Hellenicus insect is seen in Athens' Kesariani forest May 8, 2005. Millions of pine trees throughout Greece have been killed by the insect this year threatening the country with a major environmental disaster. The outbreak has been triggered by Greek honey makers who introduced it in a bid to increase production as the insect produces a type of honeydew but it has since spread to other forests and nature reserves. Picture taken May 8, 2005.

A pine tree branch infected with the Monophlebus Hellenicus insect is seen in Athens' Kesariani forest May 8, 2005. Millions of pine trees throughout Greece have been killed by the insect this year threating the country with a major environmental disaster. The outbreak has been triggered by Greek honey makers who introduced it in a bid to increase production as the insect produces a type of honeydew but it has since spread to other forests and nature reserves. Picture Taken May 8, 2005. REUTERS/Yiorgos Karahalis YK/LA

Dead pine trunks infected with the Monophlebus Hellenicus insect in Athens' Kesariani forest May 8, 2005. Millions of pine trees throughout Greece have been killed by the insect this year threatening the country with a major environmental disaster. The outbreak has been triggered by Greek honey makers who introduced it in a bid to increase production as the insect produces a type of honeydew but it has since spread to other forests and nature reserves. Picture taken May 8, 2005. REUTERS/Yiorgos Karahalis YK/MSF

A pine tree infected with the Monophlebus Hellenicus insect is seen in Athens' Kesariani forest May 8, 2005. Millions of pine trees throughout Greece have been killed by the insect this year threating the country with a major environmental disaster. The outbreak has been triggered by Greek honey makers who introduced it in a bid to increase production as the insect produces a type of honeydew but it has since spread to other forests and nature reserves. Picture taken May 8, 2005. REUTERS/Yiorgos Karahalis YK/LA

A dead pine tree branch infected with the Monophlebus Hellenicus insect is seen in Athens' Kesariani forest May 8, 2005. Millions of pine trees throughout Greece have been killed by the insect this year threatening the country with a major environmental disaster. The outbreak has been triggered by Greek honey makers who introduced it in a bid to increase production as the insect produces a type of honeydew but it has since spread to other forests and nature reserves. Picture taken May 8, 2005. REUTERS/Yiorgos Karahalis YK/LA