Caption: Pepper weevil (Anthonomus eugenii). Adults are reddish-brown to black snout beetles. Note the wing emerging from the elytra.The pepper weevil is the most important insect pest of pepper in the southern United States. Pepper weevils likely came from Mexico. They were first found in the United States in Texas around 1904. Pepper weevils were first observed in Hawaii in 1993. Pepper weevil populations persist only where food plants are available throughout the year thus limiting their range. The female lays eggs singly beneath the surface of the blossom buds or young tender pods. Larvae hatch and are aggressive, with only a single larva surviving within a bud. The pupa is brittle and found within the blossom or fruit. The pupa resembles the adult in form, however the wings are not fully developed. A complete generation requires only 20 to 30 days. Pepper weevil larvae develop only on plants in the family Solanaceae. Among vegetables, all varieties of pepper (including nightshade and eggplant) are susceptible to attack.An important form of damage is destruction of blossom buds and immature pods. Both adult and larval feeding cause bud drop. Adults also feed on fruits and the punctures appear as dark specks on the fruit. Sometimes the fruit is deformed and fruit drop is very common.
Magnification*: x7
Type: SEM
Copyright 2007 Dennis Kunkel Microscopy, Inc.
Keywords: 26355A,insects,insect,pepper weevil,weevil,agricultural pest,Anthonomus,07.01.07,invertebrate,invertebrates,pepper weevils,Anthonomus eugenii,pepper,weevils,insect pest,insect pests,agricultural pests,Solanaceae,nightshade,eggplant,eggplants,snout beetle,snout beetles,beetle,beetles,fruit drop,commercial pest,food pest,food pests,pest,peppers,pepper plant,snout weevil,snout weevils,SEM,elytra,elytron