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Photo LibraryInsects
Black Sunflower Stem Weevil

The black sunflower stem weevil, Apion occidentale (Fall)
Feeding damage is seldom significant, but the weevil has been associated with the transmission of the pathogen, Phoma macdonaldii Boerma, the causal agent of Phoma black stem. In recent years, severe pitting on cotyledons or seedling sunflower has been observed and resulted in some occasional stand loss. In most cases, damage from the black sunflower stem weevil has been non-economic.




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Adult black SF stem weevil

Name: Adult black SF stem weevil
Description: Adult black sunflower stem weevil on leaf
ID Name: sun826n
Size: 69K

Black SF stem weevil larva

Name: Black SF stem weevil larva
Description: Larva of black sunflower stem weevil
ID Name: sun827n
Size: 52K

Black SF stem weevils mating

Name: Black SF stem weevils mating
Description: Adult black sunflower stem weevils mating
ID Name: sun828n
Size: 60K


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