youdao

Scientists think this is the plants' way to prevent the spread of any tree diseases and make life more difficult for leaf-eating insects like caterpillars.

科学家认为，这是植物防止树木疾病传播的方法，并给像毛毛虫之类的食叶昆虫制造些生存上的困难。

youdao

The EPA estimates that the insects face no observable harm when consuming milkweed leaves laden with up to 150 corn pollen grains per square centimeter of leaf surface.

环保署估计，即使马利筋叶片上每平方公分有高达150颗的玉米花粉，昆虫食用后也没有明显的危害。

youdao

Massive application of pesticides has meanwhile extinguished some pests and insects while letting others thrive, including the American bollworm, an unpleasant cotton blight, and rice-leaf folder.

ECONOMIST: Punjabis are poisoning themselves