| 单词 | sawfly |
| 例句 | In some Canadian forests a virus that affects pine sawflies has proved so effective in control that it has replaced insecticides. Silent Spring 1962-09-27T00:00:00Z Of all these small burrowers, the voracious shrews find and consume the largest number of sawfly cocoons. Silent Spring 1962-09-27T00:00:00Z The wing sounds of approaching parasitic flies warn the larvae of some sawflies to herd together for protection. Silent Spring 1962-09-27T00:00:00Z Legions of professional entomologists fret about sawflies, ambrosia beetles, scale insects and leafhoppers. Learning to live with — even enjoy — insects in the garden 2019-08-06T04:00:00Z When it does snow, it melts in a few days, and drought conditions have allowed the hemlock sawfly, which feeds on the foliage, to thrive. Why Biden’s new protections don’t eliminate threats to the Tongass National Forest 2023-02-05T05:00:00Z The tiny creatures that excavate a leaf’s epidermal layers to feed themselves are larvae from some 50 families of moths, flies, beetles and sawflies. Those weird marks on your leaves? Here’s how to decipher them 2022-11-02T04:00:00Z The Rhyssa hunts the larvae of sawflies hiding under the bark of trees. Wasps: If you can't love them, at least admire them 2019-09-14T04:00:00Z Baby sawflies look much like caterpillars, and they’re soft and vulnerable to being eaten. These Small Animals Wiggle As One—Here's Why 2017-09-14T04:00:00Z The dogwood sawfly is a relatively new pest in our area. ‘Cleopatra’ is a beauty in the garden — if you can keep it alive over the winter 2016-10-13T04:00:00Z It emerged that the larvae are from the ash sawfly. South Belfast: Whole lotta larvae infest trees in Belvoir estate - BBC News 2016-06-08T04:00:00Z Eiseman is working on a guide to the larvae of sawflies — the most primitive group of Hymenoptera, the relatives of ants, bees and wasps. Those weird marks on your leaves? Here’s how to decipher them 2022-11-02T04:00:00Z Her study looks at three different moisture levels, both with and without parasitoid wasps, to better pinpoint the factors that play into successful management of sawflies. Unraveling the secrets of the sawfly in MonDak region 2015-07-27T04:00:00Z The sawfly larvae were most startled when he breathed on them or placed his hand on the trunk of the tree, he explained in an email to National Geographic. These Small Animals Wiggle As One—Here's Why 2017-09-14T04:00:00Z Researchers report they’ve identified an insecticide to kill wheat stem sawfly, which is Montana’s number one small grain insect pest. Possible new insecticide use in Montana wheat harvesting 2015-06-13T04:00:00Z The sawfly outbreak is the latest in multiple insect epidemics in Colorado forests including mountain pine bark beetles and spruce beetles. Sawfly epidemic threaten threatens Colorado ponderosa pines 2015-05-14T04:00:00Z About now in the Northeast, you may witness the geometrically patterned larvae of the dogwood sawfly chewing on Cornus foliage. Those weird marks on your leaves? Here’s how to decipher them 2022-11-02T04:00:00Z In addition to improving management strategies, Rand’s data may also improve the ability to predict wheat stem sawfly outbreaks, providing growers with more guidance for management decisions. Unraveling the secrets of the sawfly in MonDak region 2015-07-27T04:00:00Z The sawflies are so called because they possess at the end of the body a curious organ, corresponding to the sting of a wasp, but which is in the form of a fine-toothed saw. On the Origin and Metamorphoses of Insects 2011-12-05T03:00:46.667Z The gooseberry is sometimes attacked by the grub of the gooseberry sawfly, Nematus ribesii, of which several broods appear in the course of the spring and summer, and are very destructive. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z The sawfly outbreak reached epidemic levels in July. Sawfly epidemic threaten threatens Colorado ponderosa pines 2015-05-14T04:00:00Z For all exposed sawfly larvae hellebore washes are most fatal, but they must not be used over ripe or ripening fruit, as the hellebore is poisonous. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z “This opens up intriguing possibilities for helping manage the sawflies,” Jaronski says. Unraveling the secrets of the sawfly in MonDak region 2015-07-27T04:00:00Z To this order belong the gallflies, the sawflies, the ichneumons, and, above all, the ants and bees. On the Origin and Metamorphoses of Insects 2011-12-05T03:00:46.667Z The Rose Emphytus is another of the sawflies, and one of the worst. Roses and Rose Growing The Slug-worm is so called from the similarity of the larva of this sawfly to a small black slug. The Book of Pears and Plums The most important Hymenopterous pests are the sawflies or Tenthredinidae, which in their larval stage attack almost all vegetation. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z This bird also eats beetles, grasshoppers, sawflies, and spiders. Bird Day; How to prepare for it And now you tell me sawflies are an inch long or less. A Thin Ghost and Others There are several kinds of sawflies, and their destructive methods vary. Roses and Rose Growing There are a number of tussock moths, sawflies, beetles, etc., which feed on the leaves of nut trees. Northern Nut Growers Association, report of the proceedings at the eighth annual meeting Stamford, Connecticut, September 5 and 6, 1917 Enemies: The larch is subject to the attacks of a sawfly, which has killed many trees of the American species. Studies of Trees Do you know it, Mrs. Maple? and, by the way, look at your sawflies by the window there.' A Thin Ghost and Others On the window-sill and the floor near it were the dead bodies of many hundred sawflies, and one torpid one which I had some satisfaction in killing. A Thin Ghost and Others But what are sawflies? will they eat my coats? A Thin Ghost and Others That is the larvae of two of the sawflies. Northern Nut Growers Association, report of the proceedings at the eighth annual meeting Stamford, Connecticut, September 5 and 6, 1917 These sawfly larvae need looking after and can be killed by spraying. Northern Nut Growers Association, report of the proceedings at the eighth annual meeting Stamford, Connecticut, September 5 and 6, 1917 |
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