FLIP
发表于 2025-3-28 17:48:16
Migration,ast to those species which never breed in Britain (Class I) and those which occasionally breed in the summer (Class II). Williams . (1942) believed that the three pierid species, . and ., were usually and significantly found abundant together on migration. He referred to these three species as “hard
vibrant
发表于 2025-3-28 19:39:05
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津贴
发表于 2025-3-29 01:03:27
Economic importance,ion is lacking from a number of countries and that there is great contrast between the amount published about different countries. This review of depredations by . thus serves to highlight those areas where further information is needed. Helpful comments of many entomologists have been incorporated
职业
发表于 2025-3-29 05:50:12
Parasitic control,rt (1662) even before the nature of parasitism was properly understood. John Ray (1710) was perhaps only one of several naturalists who independently discovered the essence of the host-parasite relationship in the early part of the 18th century, but it is of particular interest here that his celebra
危险
发表于 2025-3-29 10:52:36
Pathogenic control, subject; they have also published much on . The best known team on this subject is David and Gardiner of the Glasshouse Crops Research Institute, Littlehampton and of the Agricultural Research Council Unit of Invertebrate Physiology at Cambridge; they have published more than 50 works on viral cont
MOTTO
发表于 2025-3-29 13:42:23
Predators, coleoptera and diptera, and other miscellaneous insect species belonging to five other insect orders, as well as several unidentified arachnid species, three species of mammal and one species each of a reptile, an amphibian and an insectivorous plant.
Diuretic
发表于 2025-3-29 18:37:01
Chemical control,ct the history of pesticide usage on insects. . has always been widely available as a test insect and numerous insecticides have been tested on this species. In fact most work refers to the screening of insecticides in the laboratory and there is probably much that could be done in the field with co
纠缠,缠绕
发表于 2025-3-29 20:53:09
Integrated control, methods when these are selective and not detrimental to biological methods (Greathead, 1976; van Emden, 1974a,b; Way, 1977). However, for perennial crops integrated control measures can be implemented much more easily and with a greater chance of success than with annual crops, such as cabbage, whi
seruting
发表于 2025-3-30 00:07:38
Nomenclature,ced with the true butterflies in the superfamily Papilionoidea, the Large White is the “typical” species of the family Pieridae, a group mostly comprising the familiar whites (Pierinae) and sulphurs (Coliadinae). The technical or “scientific” name of the Large White is . (Linnaeus, 1758).
Gastric
发表于 2025-3-30 05:24:51
Development, has been given special attention as scientists have always been keen to know how extrinsic factors affect the duration of larval development. This is particularly important in controlled laboratory experiments.