Results 171 to 180 of about 18,589 (207)
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Fate of pea enation mosaic virus in PEMV-injected pea aphids
Virology, 1975Abstract Ultrathin sections were prepared for electron microscopy from excised organs and tissues of viruliferous pea aphids, Acyrthosiphon pisum (Harris). Aphids were rendered viruliferous by injecting pea enation mosaic virus (PEMV) directly into the hemocoele.
K F, Harris +3 more
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2023
Insect and disease pests are prevalent in both residential and commercial food production settings, meaning that a large number of Idahoans contend with them each year. Part of an integrated pest management (IPM) series, this colorfully illustrated bulletin helps homeowners and growers alike to identify pea aphids and to learn the IPM options available
Eigenbrode, Sanford, Wickwar, Desire
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Insect and disease pests are prevalent in both residential and commercial food production settings, meaning that a large number of Idahoans contend with them each year. Part of an integrated pest management (IPM) series, this colorfully illustrated bulletin helps homeowners and growers alike to identify pea aphids and to learn the IPM options available
Eigenbrode, Sanford, Wickwar, Desire
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Modulation of Aphid Alarm Pheromone Emission of Pea Aphid Prey by Predators
Journal of Chemical Ecology, 2013Recent studies on animal alarm signaling have shown that alarm calls generally are not uniform, but may vary depending on the type and intensity of threat. While alarm call variability has been studied intensively in birds and mammals, little is known about such variation in insects.
Joachim, C. +5 more
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Virology, 1973
Pea enation mosaic virus (PEMV) was purified from pea aphids by a system involving chloroform-butanol emulsification, differential centrifugation, and density gradient centrifugation. The product was highly infectious when transmitted to pea plants by pea aphids, and it was extracted in sufficiently high concentration to be monitored in centrifuged ...
J V, French +3 more
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Pea enation mosaic virus (PEMV) was purified from pea aphids by a system involving chloroform-butanol emulsification, differential centrifugation, and density gradient centrifugation. The product was highly infectious when transmitted to pea plants by pea aphids, and it was extracted in sufficiently high concentration to be monitored in centrifuged ...
J V, French +3 more
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INSECT PREDATORS OF MUMMIFIED PEA APHIDS
The Canadian Entomologist, 1968Aphid parasite larvae in early stages of development are frequently destroyed when insect predators feed on active aphid prey. Stary (1966) discussed insect predators that may feed on living aphids, and thus destroy parasite eggs or larvae. He noted, however, only one case of direct attack on an aphid mummy: that of chrysopid larvae on Aphis fabae ...
A. G. Wheeler +2 more
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Adaptive suicidal behaviour in pea aphids
Nature, 1987The host suicide hypothesis1, which derives from inclusive fitness theory2, postulates that parasitized individuals in spatially aggregated populations consisting of close kin may actively enhance their probability of dying. The fitness cost associated with suicide becomes negligible when infection by a parasitoid causes the expected reproduction of ...
Murdoch K. McAllister +1 more
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Acyrthosiphon pisum (pea aphid).
2021Abstract A. pisum is a major pest of pea, lucerne and clover. Severe damage can occur to peas due to direct feeding and virus spread. Direct feeding on pea results in sap being removed from terminal leaves and the stem. Heavy infestations on pea can cause stunting, deformation, wilting and even death.
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Cannibalism in the pea aphid,Acyrthosiphon pisum
Insect Science, 2013AbstractPrevious observations of cannibalism have been made in the aphidAcyrthosiphon pisum(L.): this article seeks to quantify factors contributing to such behaviors. We observed and quantified the responses of a number of clones and life stages to varying levels of starvation, in the form of increasingly desiccatedVica fabaL. plants (receiving 50, 25,
Lucy C, Cooper +2 more
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Pea Aphid: Rearing on a Chemically Defined Diet
Science, 1963Pea aphids, Acyrthosiphon pisum (Harr.), reared for two successive generations on a diet made of 23 amino acids and amides, 11 water-soluble vitamins, 35 percent sucrose, salts, and cholesterol, remained apterous. They grew and developed during the first generation almost as well as those grown on pea plants, with ...
J L, Auclair, J J, Cartier
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Pea Aphid Control on Alfalfa, 1982
Insecticide and Acaricide Tests, 1983Abstract This test was conducted at the Nebraska Agric Exp Stn Mead Field Laboratory, Mead, NE in a second year stand of ‘Vernal’ alfalfa. Plots were 2.7 m x 4.6 m, arranged in a randomized complete block design replicated 3 times. A single application of 5 insecticides, at various rates, was applied on May 18.
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