- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
THE EFFICACY CONTROL OF SOME ACARICIDES ON THE TWO SPOTTED SPIDER MITES AND ITS PREDATORS ON COTTON UNDER FIELD CONDITION | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 43, Issue 0, 2013, Pages 87-95 | ||
| Authors | ||
| Sindab S.J Al-Dahwi; Sindab S.J Al-Dahwi; Saleh H.Sameer | ||
| Abstract | ||
| Field study was conducted in the fields of Gollege of Agriculture to evaluate the effect of three acaricides on the two spotted spider mites Tetranychus urticae Koch and the predators Stethorus gilvifrons (Muls) and Scolothrips sexmaculatus (perg). Results indicated that the acaricide Propergite was the most effective against all stages of mite followed by Abamectin and then Naturall. Efficacy control for adults were 83.51, 82.90, and 80.49% respectively recorded after five weeks of treatment. While efficacy control for moving immature stages were 86.47, 86.23 and 83.57% and for egg stage were 82.18, 81.25 and 79.39% respectively after the same intended observation periods.Results also showed that Propergite was the most harmfull acaricide on all stages of both predarors, Stethorus gilvifrons and Scolothrips sexmaculatus.Aduls of the predator Stethorus gilvifrons were less sensitive to the three acaricides than the other stages. Mortality percentages were 3.06 ,1.96 and 1.41 recorded after five weeks of treatment for intended acaricides respectively.As for the predatory thrips Scolothrips sexmaculatus,the mortality percentages for pupae were ;19.20,14.30 and 11.44% respectively indicating that the predatory thrips pupae were more sensitive to these acaricides than the small predatory beetles.Therefore, the application of the integrated management to control this pest should take in consideration the choice of the effective acaricides such as Abamectin with less toxicity to the two predators and other natural enemies in the same time. | ||
|
Statistics Article View: 93 PDF Download: 5 |
||