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| 31. |
Field Studies on Stability of theHeliothisNucleopolyhedrosis Virus at Various Sites Throughout the Cotton Belt1 |
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Energy & Environmental Science,
Volume 1,
Issue 3,
1972,
Page 388-390
C. M. Ignoffo,
J. R. Bradley,
F. R. Gilliland,
F. A. Harris,
L. A. Falcon,
L. V. Larson,
R. L. McGarr,
P. P. Skiorowski,
T. F. Watson,
W. C. Yearian,
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摘要:
Sensitivity of insect viruses to sunlight was demonstrated with the noninclusion virus ofPanonychus(Gilmore and Munger 1963), the nucleopolyhedrosis viruses (NPV) ofHeliothis(Bullock 1967, Allen 1968, Ignoffo and Batzer 1971) andTrichoplusia(Jacques 1968), and the granulosis virus ofPieris(David et al. 1968).
ISSN:1754-5692
DOI:10.1093/ee/1.3.388
出版商:Oxford University Press
年代:1972
数据来源: OUP
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| 32. |
Frego Bract Condition of Cotton in Relation to Insect Populations1 |
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Energy & Environmental Science,
Volume 1,
Issue 3,
1972,
Page 390-391
Thomas F. Leigh,
Angus H. Hyer,
Richard E. Rice,
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摘要:
Frego is a mutant form of cotton,Gossypium hirsutumL., in which the bracts are narrow and twisted in contrast to the normally flattened bracts that more or less enclose the flower bud or boll. In this genetic type, the bract rolls away from the young bud or boll to leave it exposed. This mutant form was found in ‘Stoneville 2B’ cotton by an Arkansas farmer in 1945, and the inheritance was reported by Green (1955).
ISSN:1754-5692
DOI:10.1093/ee/1.3.390
出版商:Oxford University Press
年代:1972
数据来源: OUP
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| 33. |
Survival of OverwinteringBathyplectes curculionis1in Illinois2 |
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Energy & Environmental Science,
Volume 1,
Issue 3,
1972,
Page 391-393
E. J. Armbrust,
J. R. DeWitt,
S. J. Roberts,
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摘要:
Bafhyplecfes curculionis(Thomson), an internal larval parasite of the alfalfa weevil,Hypera postica(Gyllenhal), was first introduced into the Great Basin area of the western United States from southern Europe between 1911 and 1914 (Chamberlin 1926). Subsequently, it was introduced into the eastern United States between 1958 and 1959 (Puttler et al. 1961). The extent of its dispersion and buildup in the Midwest has been reported (Dysart and Puttler 1965, Armbrust et al. 1967, Wilson et al. 1969), and recently this parasite has become an important biological factor in suppressing alfalfa weevils in certain areas of the midwest (Wilson and Armbrust 1970).
ISSN:1754-5692
DOI:10.1093/ee/1.3.391
出版商:Oxford University Press
年代:1972
数据来源: OUP
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| 34. |
Toxicity of Field-Weathered Insecticide Residues to Four Kinds of Bees1,2 |
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Energy & Environmental Science,
Volume 1,
Issue 3,
1972,
Page 393-394
Carl A. Johansen,
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摘要:
Toxicity of insecticides to the alfalfa leafcutter bee,Megachile rotundata(F.); the alkali bee,Nomia melanderiCockerell; and the honey bee,A pis melliferaL., has been studied by us for several years (Johansen and Eves 1967, Johansen 1969). Recently I had an opportunity to add certain bumble bee species to the comparative studies. Specimens were obtained from nests ofBombus centralisCresson andB. rufocinctusCresson.
ISSN:1754-5692
DOI:10.1093/ee/1.3.393
出版商:Oxford University Press
年代:1972
数据来源: OUP
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