A method for the rearing of Peridesmia discus ( Walker ) ( Hymenoptera: Pteromalidae ) on eggs of alfalfa weevil, Hypera postica ( Gyllenhal ) ( Coleoptera: Curculionidae ) with 5.0 Krads of gamma radiation is described. Using this procedure 21 P 1 P. discus produced an F 1 of 129 ...
Population dynamics, mortality factors, and pest status of alfalfa weevil in Virginia The 1st generation of M. aethiopoides adults did not emerge until most of the overwintering alfalfa weevil adults had reproduced and died. A majority of alfalfa weevil eggs were laid before January at all loca...
(1970) Population dynamics of alfalfa weevil eggs in Ohio. J. Econ. Entomol. 63, 242–7. Google Scholar Nordin, G.L., Brown, G.C. and Millstein, J.A. (1983) Epizootic phenology of Erynia disease of the alfalfa weevil, Hypera postica (Gyllenhal) (Coleoptera: Curculionidae), in ...
Impact of prey age and temperature on predation by the eastern flower thrips, Frankliniella tritici, on eggs of the alfalfa weevil. Environ. Impact of the red imported fire ant, Solenopsis invicta (Hymenoptera: Formicidae), on biological control of salvinia minima (Hydropteridales: Salviniaceae) ...
Field studies on the biology of the alfalfa weevil, Hypera postica in northeast Mississippi. 来自 Semantic Scholar 喜欢 0 阅读量: 12 作者: H Pitre 摘要: Eggs, larvae, and adults of Hypera postica (Gyllenhal)(Coleoptera: Curculionidae) were found in alfalfa fields in northeast Mississippi ...
when large numbers of these butterflies may be seen fluttering low over alfalfa fields. The female lays several hundred eggs on the undersides of leaves. The larvae are fully grown in 12 to 15 days; there are two generations each season in the northern part of the range and up to seven ...
Impact of Prey Age and Temperature on Predation by the Eastern Flower Thrips, Frankliniella tritici , 1 on Eggs of the Alfalfa Weevil 2 | Environmental Ent... CAB Direct is the most thorough and extensive source of reference in the applied life sciences, incorporating the leading bibliographic ...
Adult alfalfa weevils begin moving as soon as temperatures exceed 48掳F and begin laying eggs in alfalfa. Alfalfa weevil eggs develop based on temperature, or accumulating degree days, and hatching can start around 200-300 degree days. Start scouting alfalfa fields south of Interstate 80 at 200...
Even though it was an extremely cold winter, some alfalfa weevil adults are expected to survive. Adults will begin moving as soon as temperatures exceed 48掳F and begin laying eggs in alfalfa. Alfalfa weevil eggs develop based on temperature, or accumulating degree days, and hatching can start...
Alfalfa weevil and the hard freeze Although the early April freezing temperatures that dropped below 20 掳F probably had little effect on black cutworm eggs (see last week's article), report... ME Rice 被引量: 0发表: 2007年 Two entomopathogenic nematode species with different search strategies...