| 单词 | vedalia |
| 例句 | With the advent of DDT and the even more toxic chemicals to follow, the populations of the vedalia in many sections of California were wiped out. Silent Spring 1962-09-27T00:00:00Z Then a parasite of the scale insect was imported from Australia, a small lady beetle called the vedalia. Silent Spring 1962-09-27T00:00:00Z The vedalia can be maintained only by repeated releases and by the most careful attention to spray schedules, to minimize their contact with insecticides. Silent Spring 1962-09-27T00:00:00Z Besides the vedalia beetles brought in by Koebele, other importations have been highly successful. Silent Spring 1962-09-27T00:00:00Z |
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