scholarly journals The Use of Chemicals with Specific Mode of Action in an Integrated Control Program on Eggplant for the Greenhouse Whitefly, Triαleurodes vαporαriorum

2017 ◽  
Vol 12 ◽  
pp. 19
Author(s):  
Safel Dawla Abdalla ◽  
S. Michelakis
Keyword(s):  
Growth Regulator ◽  
Mode Of Action ◽  
Integrated Control ◽  
Control Program ◽  
Trialeurodes Vaporariorum ◽  
Insect Growth Regulator ◽  
Systemic Insecticide ◽  
Greenhouse Whitefly ◽  
Specific Mode ◽  
Winter Time

In the unheated plastic greenhouses of Crete, the control of the greenhouse whitefly Trialeurodes vaporariorum Westwood using chemicals is usually needed during winter time. The systemic insecticide Vydate when applied as soil granules at the highest dose (2g/plant), gave protection for young eggplants against whitefly for a period of 5 weeks. Experiment with different chemicals showed that the new insect growth regulator Nomolt, is fairly effective in controlling the greenhouse whitefly when used in combination with Actellic. It gave equally good results when compared with a mixture of Applaud and Actellic.

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.

Environmental degradation of the insect growth regulator methoprene

1975 ◽  
Vol 5 (3) ◽  
pp. 233-241 ◽  
Author(s):  
Gary B. Quistad ◽  
Luana E. Staiger ◽  
David A. Schooley
Keyword(s):  
Environmental Degradation ◽  
Growth Regulator ◽  
Insect Growth Regulator ◽  
Insect Growth

scholarly journals A novel non-trichome based whitefly resistance QTL in Solanum galapagense

Euphytica ◽  
2021 ◽  
Vol 217 (3) ◽  
Author(s):  
Joris Santegoets ◽  
Marcella Bovio ◽  
Wendy van’t Westende ◽  
Roeland E. Voorrips ◽  
Ben Vosman
Keyword(s):  
Frankliniella Occidentalis ◽  
Recombinant Inbred Lines ◽  
Glandular Trichomes ◽  
Glandular Trichome ◽  
Trialeurodes Vaporariorum ◽  
Inbred Lines ◽  
Adult Survival ◽  
Greenhouse Whitefly ◽  
Major Threat ◽  
Type Iv

AbstractThe greenhouse whitefly Trialeurodes vaporariorum is a major threat in tomato cultivation. In greenhouse grown tomatoes non-trichome based whitefly resistance may be better suited than glandular trichome based resistance as glandular trichomes may interfere with biocontrol, which is widely used. Analysis of a collection of recombinant inbred lines derived from a cross between Solanum lycopersicum and Solanum galapagense showed resistance to the whitefly T. vaporariorum on plants without glandular trichomes type IV. The resistance affected whitefly adult survival (AS), but not oviposition rate. This indicates that S. galapagense, in addition to trichome based resistance, also carries non-trichome based resistance components. The effectiveness of the non-trichome based resistance appeared to depend on the season in which the plants were grown. The resistance also had a small but significant effect on the whitefly Bemisia tabaci, but not on the thrips Frankliniella occidentalis. A segregating F2 population was created to map the non-trichome based resistance. Two Quantitative trait loci (QTLs) for reduced AS of T. vaporariorum were mapped on chromosomes 12 and 7 (explaining 13.9% and 6.0% of the variance respectively). The QTL on chromosome 12 was validated in F3 lines.

scholarly journals Vibrational communication and mating behavior of the greenhouse whitefly Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Valeria Fattoruso ◽  
Gianfranco Anfora ◽  
Valerio Mazzoni
Keyword(s):  
Mating Behavior ◽  
Insect Pests ◽  
Trialeurodes Vaporariorum ◽  
Vibrational Communication ◽  
Greenhouse Whitefly ◽  
Behavioral Manipulation ◽  
Vibrational Signals ◽  
Intraspecific Communication ◽  
Behavioral Transition ◽  
First Time

AbstractThe greenhouse whitefly (GW), Trialeurodes vaporariorum is considered one of the most harmful insect pests in greenhouses worldwide. The GW mating behavior has been partially investigated and its vibrational communication is only in part known. A deeper knowledge of its intraspecific communication is required to evaluate the applicability of control methods based on techniques of behavioral manipulation. In this study, for the first time, we provided a detailed ethogram of the GW mating behavior and we characterized the vibrational signals emitted during the process of pair formation. We characterized two types of male vibrational emissions (“chirp” and “pulses”), differently arranged according to the behavioral stage to form stage-specific signals, and a previously undescribed Male Rivalry Signal. We recorded and characterized two new female signals: The Female Responding Signal and the Female Rejective Signal. The mating behavior of GW can be divided into six different stages that we named “call”, “alternated duet”, “courtship”, “overlapped duet”, “mating”, “failed mating attempt”. The analysis performed with the Markovian behavioral transition matrix showed that the “courtship” is the key stage in which male exhibits its quality and can lead to the “overlapped duet” stage. The latter is strictly associated to the female acceptance and therefore it plays a crucial role to achieve mating success. Based on our findings, we consider the use of vibrational playbacks interfering with GW mating communication a promising option for pest control in greenhouses. We discuss the possibility to start a research program of behavioral manipulation to control the populations of GW.

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