lygus bug造句

例句与造句

1. Some methods of biological pest control have proved useful against lygus bugs.
2. It is being studied for use against lygus bug on cotton and thrips in vegetables.
3. For example, wasps of the genus " Peristenus " are parasitoids of lygus bugs; an adult wasp will inject an egg into a lygus nymph, and once the egg hatches the wasp's larva will consume the nymph from the inside out.
4. Specific pest species that have been successfully controlled by pyrethrum include : potato, beet, grape, and six-spotted leafhopper, cabbage looper, celery leaf tier, Say s stink bug, twelve-spotted cucumber beetle, lygus bugs on peaches, grape and flower thrips, and cranberry fruitworm.
5. So-called trap crops _ flowers, alfalfa _ planted alongside cash crops attract beneficial insects and simultaneously take care of such nasty critters as the lygus bug, a small insect that winters in the hills and comes down to the valley in spring.
6. It's difficult to find lygus bug in a sentence. 用lygus bug造句挺难的
7. A 2011 study based on a survey of 1, 000 randomly selected farm households in five provinces in China found that the reduction in pesticide use in Bt cotton cultivars was significantly lower than that reported in research elsewhere : The finding was consistent with a hypothesis that more pesticide sprayings are needed over time to control emerging secondary pests, such as aphids, spider mites, and lygus bugs.