Bacillus thuringiensis is a beneficial bacteria used to control which pests?

Bacillus thuringiensis is a beneficial bacteria used to control which pests?

• A. Late blight
• B. Chicweed
• C. Parasitic wasp
• D. Caterpillars

Answer: (D)

Bt is a biological pesticide used to control caterpillar pests. It produces insecticidal toxins that must be ingested by the larvae; once inside the gut, these toxins disrupt digestion and cause death, making Bt effective against caterpillars while remaining relatively safe for humans, animals, and many non-target insects when used properly. Late blight is a plant pathogen, not an insect pest; chicweed is a weed, not a target for Bt; parasitic wasps are beneficial insects, and Bt is not used to promote or protect them. So the pest group that Bt is used to control in this context is caterpillars.

Bt is a biological pesticide used to control caterpillar pests. It produces insecticidal toxins that must be ingested by the larvae; once inside the gut, these toxins disrupt digestion and cause death, making Bt effective against caterpillars while remaining relatively safe for humans, animals, and many non-target insects when used properly. Late blight is a plant pathogen, not an insect pest; chicweed is a weed, not a target for Bt; parasitic wasps are beneficial insects, and Bt is not used to promote or protect them. So the pest group that Bt is used to control in this context is caterpillars.