Plant pest research. Entomologist weighing a cotton bollworm (Helicoverpa zea) larva to assess its resistance to an insecticidal protein that it was exposed to for 12 days. Bollworm larvae are a major pest of a number of crops worldwide. This protein is derived from from Bacillus thuringiensis (Bt) bacteria and is being investigated as a possible bio-control for various agricultural pests | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Greb, Peggy / US Department of Agriculture |
Taille de l’image : | 3425 px × 5231 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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