scholarly journals Control of the Greenhouse Whitefly, Trialeurodes vaporariorum WESTWOOD (Homoptera : Aleyrodidae) by the Integrated Use of Yellow Sticky Traps and the Parasite Encarsia formosa GAHAN (Hymenoptra : Aphelinidae)

1987 ◽  
Vol 22 (2) ◽  
pp. 159-165 ◽  
Author(s):  
Eizi YANO
Keyword(s):  
Trialeurodes Vaporariorum ◽  
Encarsia Formosa ◽  
Greenhouse Whitefly ◽  
Sticky Traps ◽  
Yellow Sticky Traps

scholarly journals Reduced translucency and the addition of black patterns increase the catch of the greenhouse whitefly, Trialeurodes vaporariorum, on yellow sticky traps

PLoS ONE ◽  
2018 ◽  
Vol 13 (2) ◽  
pp. e0193064 ◽  
Author(s):  
Clare Sampson ◽  
Anca D. Covaci ◽  
James G. C. Hamilton ◽  
Nayem Hassan ◽  
Shakir Al-Zaidi ◽  
...  
Keyword(s):  
Trialeurodes Vaporariorum ◽  
Greenhouse Whitefly ◽  
Sticky Traps ◽  
Yellow Sticky Traps

FLIGHT BEHAVIOR OF THE GREENHOUSE WHITEFLY, TRIALEURODES VAPORARIORUM (WESTWOOD) (HOMOPTERA: ALEYRODIDAE), IN RELATION TO YELLOW STICKY TRAPS

1992 ◽  
Vol 124 (5) ◽  
pp. 907-916 ◽  
Author(s):  
David R. Gillespie ◽  
Donald J.M. Quiring
Keyword(s):  
Population Size ◽  
Trialeurodes Vaporariorum ◽  
Field Conditions ◽  
Flight Behavior ◽  
Greenhouse Whitefly ◽  
Sticky Traps ◽  
Tomato Plants ◽  
Monitoring Traps ◽  
Trap Catches ◽  
Yellow Sticky Traps

AbstractThe placement of yellow sticky traps in relation to greenhouse-grown tomato plants affected the number of greenhouse whiteflies captured on traps. Whiteflies were caught on traps close to the ground when the traps were 1.0 m or more from plants, and were caught on traps level with the point from which they started flight when the traps were 0.5 m from plants. Traps 1.0 m from plants primarily caught whiteflies less than 5 days old, and trap catches were not correlated with numbers on plants; traps 0.5 m from plants caught whiteflies of all ages, and trap catches were correlated with numbers on plants. These results suggest that under field conditions greenhouse whiteflies would behave much like other species of whitefly, and would tend to be caught on traps close to the ground. In greenhouses, monitoring traps should be placed close to and slightly below the tops of the plants. Trap counts could be treated as samples from individual plants and used to make an estimate of population size in the greenhouse. Traps placed further from the plants monitor flight activity only.

scholarly journals CONTROL OF GREENHOUSE WHITEFLY (TRIALEURODES VAPORARIORUM) USING DELPHASTUS PUSILLUS AND AZATIN, A BOTANICAL INSECTICIDE

HortScience ◽  
1995 ◽  
Vol 30 (2) ◽  
pp. 189c-189
Author(s):  
Marie E. Maiuro
Keyword(s):  
Growth Regulator ◽  
Control Method ◽  
Trialeurodes Vaporariorum ◽  
Botanical Insecticide ◽  
Greenhouse Whitefly ◽  
Sticky Traps ◽  
Yellow Sticky Traps

Fifty greenhouse whitefly (Trialeurodes) were placed in each of 10, one-meter square nylon chiffon cages containing nine regal geraniums in 6-inch pots. After allowing the whitefly to reproduce for 2 weeks, the treatments tested were Delphastus pusillus alone, Azatin sprays alone, D. pusillus and Azatin together, and no control method. Two repetitions for each treatment were conducted. The Azatin, 14 oz/100 gallons, and a spreader/sticker were applied weekly with a mist sprayer. Delphastus pusillus, nine per cage, were released every 2 weeks. Sampling was conducted weekly by placing yellow sticky traps into each box for a 24-hour period, then counting the number of adults caught. All treatments gave statistically significant fewer whitefly than the cages with no control method. The cages with Azatin and/or D. pusillus were not statistically different from each other. Results indicate that D. pusillus can control whitefly as well as a growth regulator/botanical insecticide.

ASPECTS OF THE INTERACTION BETWEEN A CHALCID PARASITE AND ITS ALEURODID HOST

1967 ◽  
Vol 45 (4) ◽  
pp. 539-578 ◽  
Author(s):  
T. Burnett
Keyword(s):  
Larval Mortality ◽  
Trialeurodes Vaporariorum ◽  
Host Population ◽  
Population Variation ◽  
Encarsia Formosa ◽  
Greenhouse Whitefly ◽  
Parasite Abundance ◽  
Tomato Plants ◽  
Host Mortality ◽  
Dominant Process

Three populations of the greenhouse whitefly, Trialeurodes vaporariorum, and its chalcid parasite Encarsia formosa were propagated each year for three consecutive years on tomato plants in the greenhouse. The abundance of the host and parasite species fluctuated either with peaks of increasing amplitude, with peaks of decreasing amplitude, or with irregular peaks. The dominant process in the interaction was the occurrence of two qualitatively different types of host larval mortality: (a) parasitization, and (b) almost immediate killing after attack by adult parasites. Fluctuations in host and parasite abundance resulted from the almost immediate killing of small host larvae and the death of the short-lived adult parasites. The parasite population tended to destroy similar percentages of host populations of different densities but host mortality was also related to the age structure of the host population. Variation in host reproduction, caused by differences in rearing temperature and by seasonal variation in the physical environment, influenced host and parasite densities.

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