Description: Native to Africa, the tiny coffee berry borer beetle (Hypothenemus hampei) is the most harmful pest to coffee crops worldwide. The main host of H. hampei is Coffea arabica. Transport of infected seeds has affected crops in over 70 countries, with the most recent detection (2010) in Kona, Hawaii. An adult female drills the berry and lays 35 to 50 eggs. New adults mate, and wingless males stay in the fruit while females lay eggs in other fruits of the same plant or fly off to colonize new plants. Up to a hundred beetles can be found in a single fruit. Insecticides are useful only before the female penetrates the berry, so control is mostly by visual inspection. The application of efficient control programs is difficult, since the coffee plant is perennial, with several flowering periods, and grows in areas with very unpredictable weather. Parasitoids used for biocontrol of the the borer beetle are hymenoptera (wasps) native to Africa. A few nematodes and fungi have also been partially successful for biocontrol.
Type: SEM
Magnification:* x16
Copyright 2011 Dennis Kunkel Microscopy, Inc.
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