Recent Insect Damage To Asiatic Lilies - Knowledgebase Question

Name: Robert Henrici
Newbury, MA
Question by wwwconbo
May 5, 2001
What is the name of the insect which has been moving northward in this region and is destroying asiatic lilies?


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Answer from NGA
May 5, 2001

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The lily leaf beetle is a recent arrival to the U.S Here's the beetle's life cycle - this may give you more insight on how else you might prepare for it's emergence, or even inhibit emergence: The adult beetles overwinter in the soil and emerges from soil in April as lilies begin to grow. Beetles feed on tender new growth and lay a string of red eggs on the underside of leaves. When the larvae emerge, they feed mostly on the undersides of leaves, creating notches and holes. Feeding often results in deformed blooms. Neem oil will only kill larvae if it's applied soon after the eggs hatch.

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