これだけでも、殺虫剤として売る方からして見れば飛んだ言い掛りですけれど、これは捏造です。(論理的に考えてもおかしいということはお分かりと思います) 原文は上記EXTOX NETのAzadirachtinにある「Azadirachtin is relatively harmless to spiders, butterflies, and insects such as bees that pollinate crops and trees, ladybugs that consume aphids, and wasps that act as parasites on various crop pests. This is because neem products must be ingested to be effective. Thus, insects that feed on plant tissue succumb, while those that feed on nectar or other insects rarely contact significant concentrations of neem products.」です。