Results 231 to 240 of about 354,089 (265)

Insecticidal Control of the Greenhouse Whitefly on Greenhouse Ornamental and Vegetable Plants13

Journal of Economic Entomology, 1974
In a comparison of test materials for control of Trialeurodes vaporariorum (Westwood), resmethrin was the most effective spray and controlled all stages but the eggs. Resmethrin mists and aerosols gave good control of whitefly adults and young nymphs in the winter, but were less effective in the warmer months. Azinphosmethyl, Dasanit® ( O,O -diethyl O -
E. S. Fields, A. L. Boswell, Rolland M. Waters, Floyd F. Smith, Ralph E. Webb   +4 more
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Greenhouse Whitefly Control on Fushift, 1982

Insecticide and Acaricide Tests, 1984
Abstract Five, 6-in pots containing five, 24-in Fushia shoots were heavily infested with the greenhouse whitefly. Each plot was randomly assigned to one of five treatments and the whiteflies were counted on the terminal five leaves of each shoot. Sprays were applied with a compressed air sprayer until the plants dripped.
John H. Davidson, Michael J. Raupp, Alvin M. Wilson   +2 more
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GREENHOUSE WHITEFLY AS A PEST OF RHODODENDRONS (ERICACEAE)

Russian State Agrarian University-Moscow State Agricultural Academy named after K. A. Timiryazev, 2021
Представлены результаты изучения особенностей хода роста Rhododendron dauricum L., Rhododendron mucronulatum Turcz., Rhododendron sichotense Pojark. (семейство Ericaceae) в процессе интродукции в Забайкальском крае. В оранжерейных условиях отмечено вредоносное воздействие Trialeurodes vaporariorum (Aleyroididae, Homoptera) на вегетативные органы ...
O. S. Vologdina, Timirâzevskaâ selʹskohozâjstvennaâ akademiâ   +1 more
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Realized heritability of resistance to dicrotophos in greenhouse whitefly

Entomologia Experimentalis et Applicata, 1993
AbstractRealized heritability (h2) of resistance to dicrotophos in greenhouse whitefly, Trialeurodes vaporariorum Westwood, was estimated from a laboratory selection experiment. Five generations of selection increased the LC50 approximately 13‐fold. Estimated h2 of resistance to dicrotophos was 0.40 when calculated with the method of Tabashnik (1992 ...
Marshall W. Johnson, Thomas F. Leigh, Thomas F. Leigh, A. D. Omer, A. D. Omer, Bruce E. Tabashnik   +5 more
openaire   +2 more sources

Integrated Control of the Greenhouse Whitefly on Cucumbers1

Journal of Economic Entomology, 1970
Oxythioquinox was the only 1 of 5 chemicals recommended for control of Trialeurodes vaporariorum (Westwood) which was not toxic to its chalcid parasite Encarsia Formosa Gahan. Oxythioquinox at 0.01 % killed 50% of whitefly adults, about 80% of the eggs, and also controlled cucumber powdery mildew.
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Electrical recording and ultrastructure of stylet penetration by the greenhouse whitefly

Entomologia Experimentalis et Applicata, 1989
AbstractEarlier studies have indicated that interior (physical and/or chemical) properties of a plant may be responsible for feeding‐site selection by the greenhouse whitefly, Trialeurodes vaporariorum (Westw.). In order to study the process of feeding‐site selection further, stylet‐penetration activities and the pathway followed by the stylets in host‐
Janssen, J.A.M., Tjallingii, W.F., van Lenteren, J.C.   +2 more
openaire   +3 more sources

Effects of alternative pesticides on greenhouse whitefly in protected cultivation

Journal of Pest Science, 2008
The greenhouse trials were conducted to determine the efficacy of environmentally safe insecticides/fungicides with physical mode of action [Agri-50E (propylene glycol alginate, hydrated) and SB Plant Invigorator] against Trialeurodes vaporariorum (Westwood).
Katja Žanić, Slavko Perica, Smiljana Goreta, Jelena Šutić   +3 more
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Greenhouse Whitefly Control on Marigold, Michigan, 1990

Insecticide and Acaricide Tests, 1991
Abstract Thirty-six greenhouse grown 8-wk-old (6 inch) marigold plants were used for this experiment. Each treatment was replicated 6 times. Precounts of 3 leaves/plant were completed on 9 Jul. Spray applications were made 3 times on 9, 19, and 30 Jul.
K. A. Kearns, C. A. Stevens, David R. Smitley, Terrance W. Davis   +3 more
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Laboratory selection of greenhouse whitefly for resistance to malathion

Entomologia Experimentalis et Applicata, 1984
AbstractA strain of the greenhouse whitefly (Trialeurodes vaporariorum Westwood (Homoptera: Aleyrodidae)) with a history of insecticide exposure was selected with malathion sufficient to cause 80–90% mortality. After 13 generations, malathion resistance had increased 55‐fold, and a slight (1.7 ×) increase in resmethrin resistance was noted.
David J. Horn, E. A. Elhag
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Probing and feeding characteristics of the greenhouse whitefly in association with host‐plant acceptance and whitefly strains

Entomologia Experimentalis et Applicata, 1998
AbstractHost‐plant and whitefly strain effects and their interactions on the probing and sap feeding of the greenhouse whitefly, Trialeurodes vaporariorum (Westwood), have been investigated in this study using the DC‐EPG (Electrical Penetration Graph) technique.
Lei, H., Tjallingii, W.F., van Lenteren, J.C.   +2 more
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