Japanese Beetles on Stringbeans - Ask Extension
Can you recommend a poison that can be sprayed on Japanese Beetles-one that can kill the beetle but will not make the beans inedible? Thank you.
Knowledgebase
Japanese Beetles on Stringbeans #844327
Asked August 05, 2023, 7:43 PM EDT
Can you recommend a poison that can be sprayed on Japanese Beetles-one that can kill the beetle but will not make the beans inedible? Thank you.
Denver County Colorado
Expert Response
Before you resort to using insecticides for treating Japanese Beetle, we recommend you take a less harmful approach. The first approach is to pick the beetles off the plants and drop them in a bucket of soapy water. If this can't be done, as a last resort, you may wish to apply chemicals. Beware whenever using any pesticide. You must read the label before using. It gives important information about toxicity to bees and other insects.
Here is more information on the above topics:
https://denver.extension.colostate.edu/programs/horticulture/japanese-beetle/
Using chemicals should be a last resort. Click on the link below for a detailed Fact Sheet that gives you other options of control. One way is to kill the grub phase of their life cycle. Beetles lay their eggs under turf, perhaps killing it by eating roots, and hatch into full grown beetles. Timing of applying chemicals to the lawn is critical. Now would be the time this year. Also included is a list of pesticides and their hazards. Note that different chemicals have different effects, so you must read the label before using any pesticide. It is the law.
https://extension.colostate.edu/topic-areas/insects/japanese-beetle-5-601/
Here is more information on the above topics:
https://denver.extension.colostate.edu/programs/horticulture/japanese-beetle/
Using chemicals should be a last resort. Click on the link below for a detailed Fact Sheet that gives you other options of control. One way is to kill the grub phase of their life cycle. Beetles lay their eggs under turf, perhaps killing it by eating roots, and hatch into full grown beetles. Timing of applying chemicals to the lawn is critical. Now would be the time this year. Also included is a list of pesticides and their hazards. Note that different chemicals have different effects, so you must read the label before using any pesticide. It is the law.
https://extension.colostate.edu/topic-areas/insects/japanese-beetle-5-601/
Before you resort to using insecticides for treating Japanese Beetle, we recommend you take a less harmful approach. The first approach is to pick the beetles off the plants and drop them in a bucket of soapy water. If this can't be done, as a last resort, you may wish to apply chemicals. Beware whenever using any pesticide. You must read the label before using. It gives important information about toxicity to bees and other insects.
Here is more information on the above topics:
https://denver.extension.colostate.edu/programs/horticulture/japanese-beetle/
Using chemicals should be a last resort. Click on the link below for a detailed Fact Sheet that gives you other options of control. One way is to kill the grub phase of their life cycle. Beetles lay their eggs under turf, perhaps killing it by eating roots, and hatch into full grown beetles. Timing of applying chemicals to the lawn is critical. Now would be the time this year. Also included is a list of pesticides and their hazards. Note that different chemicals have different effects, so you must read the label before using any pesticide. It is the law.
https://extension.colostate.edu/topic-areas/insects/japanese-beetle-5-601/
Here is more information on the above topics:
https://denver.extension.colostate.edu/programs/horticulture/japanese-beetle/
Using chemicals should be a last resort. Click on the link below for a detailed Fact Sheet that gives you other options of control. One way is to kill the grub phase of their life cycle. Beetles lay their eggs under turf, perhaps killing it by eating roots, and hatch into full grown beetles. Timing of applying chemicals to the lawn is critical. Now would be the time this year. Also included is a list of pesticides and their hazards. Note that different chemicals have different effects, so you must read the label before using any pesticide. It is the law.
https://extension.colostate.edu/topic-areas/insects/japanese-beetle-5-601/
