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A small winged insect of ant-like appearance. The female lays its egg in the food plant and when the larva hatches the surrounding plant tissue swells up around it to form a gall.
- ‘Just how the different gall wasps stimulate oaks to form a specific kind of gall is not completely understood.’
- ‘Two or more years are required for gall wasps that develop in woody twig galls to reach maturity.’
- ‘There are at least two different families of gall wasps which come in lay their eggs and that eats the maggot.’
- ‘Socially inept, the young entymologist is delighted when he meets Clara, the only girl on campus as interested in gall wasps as he is.’
- ‘As a by-product of that study, they discovered that females of a flea-sized prairie gall wasp, Antistrophus rufus, are able to alert males to their presence by altering the smell of the plants they live in.’
- ‘Here he abandoned religion, raised a family, and won a reputation as a respected teacher and preeminent authority on gall wasps.’
- ‘Female gall wasps emit chemical pheromones into the plant stem to attract males in the spring.’
- ‘The gall wasp, a native of Korea and Japan, entered this country in Georgia in 1974 from Asia.’
- ‘He immerses himself in the study of the gall wasp, whose North American varieties were almost completely unresearched.’
- ‘He attended Harvard and received a Doctor of Science degree in taxonomy, and he devoted no less than 20 years of his life to researching the gall wasp.’
- ‘Prune gall wasp out of citrus trees before September to prevent eggs from hatching.’
- ‘The hedgehog gall wasp can cause leaf galls with orangeish fuzz.’
- ‘Perhaps his background as a specialist on gall wasps wasn't the best start for the study of human relations.’
- ‘Even still, there are other perils awaiting the defenseless gall wasps inside their papery galls.’
- ‘Specifically, the researchers found that male gall wasps respond to uneven chemical ratios in the plants.’
- ‘Only a few species are known from South America and Africa and there are no native gall wasps in Australia.’
- ‘His specialty was the physiology of the gall wasp.’
- ‘The stems are slightly swollen and if the gall wasps have emerged, their emergence holes are also noticeable.’
- ‘Each species of oak gall wasp attacks one to several host species, but none attack both white oaks and red oaks.’
- ‘Aphids, grasshoppers, and gall wasps appear in the Cretaceous, as well as termites and ants in the later part of this period.’
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