can be quite rapid under favorable conditions, with some species completing their life cycle in as little as one to two weeks. This rapid development …
America. This makes it possible for fall armyworms to spread over large areas rapidly. Adults fly by night, and are attracted to lights, especially…
feed on leaves and young shoots, and their enormous feeding capacity can rapidly decimate a plant. Very small caterpillars are not able to chew and…
developed nymphs. They immediately start to feed on plant sap and grow rapidly. Aphids moult four times before reaching adulthood. With each moult…
can occur, especially at high temperatures when population growth is most rapid and affected leaves dry out quickly. The damage is first seen on the…
developed nymphs. They immediately start to feed on plant sap and grow rapidly. When reproduction is sexual, the aphids lay eggs that overwinter. In g
second instar, a male nymph forms a dark brown ‘prepupa’ from which a pupa rapidly develops, inside a white cottony cocoon. Females undergo little…
throughout the world. Despite their small size, they are capable of very rapidly doing severe damage, due to their great reproductive capacity. There…
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