- 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 PREDATION EFFICACY OF SCOLOTHRIPS SEXMACULATUS(PERG.) AGAINST THE TWO SPOTTED SPIDER MITE TETRANYCHUS URTICAE KOCH | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 40, Issue 5, 2009, Pages 82-89 | ||
| Authors | ||
| Saleh H.Sameer; Sattar A.Ali; ; Sindab S.Jasim | ||
| Abstract | ||
| Laboratory experiments were conducted to evaluate the feeding efficacy of the predator Scolothrips sexmaculatus (Perg.) against different stages of the two spotted spider mite Tetranychus urticae Koch.Resuls indicated that the predator larvae fed on all stages of the mite .The consumption rate increased with increasing developmental stage of the predator and decreased with the increasing size of prey. The predator larvae consumed during the whole larval duration an average of 351,4,219.2,191.9 and 189.2 individual respectively of eggs,larvae,nymphs and adults mite when fed on each stage separately. Female was significantly different from male in term of prey consumption .Mean consumption for females was 2160.1,2072.1,1896.4 and 1163.2of eggs ,larvae, nymphs and adults mites. While the male consumed an average of 414.5,421.5,362.6 and 191.7 individual when fed on each of the mentioned mite stages separately during the whole life duration. Results also indicated that females consumed significantly higher number of mite individual during the oviposition period . The consumption rate decreased also with the increasing size of prey. Therefore, this predator can be included in a mass rearing program to be used in a spacic time for controlling the spider mite T.urticae and other small pests on cotton in the field . | ||
|
Statistics Article View: 30 PDF Download: 11 |
||