- 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 biological control of nymphs and adults of field cricket Gryllodes aigillatus L.(Gryllidae : Orthoptera )in the laboratory by using Trichoderma harzianum | ||
| Kufa Journal for Agricultural Science | ||
| Article 1, Volume 3, Issue 2, 2011, Pages 250-264 | ||
| Abstract | ||
| الخلاصةاجري هذا البحث بهدف دراسة تأثير الفطر Trichoderma harzianum في حوريات وكاملات حشرة صرصر الحقل . بينت الدراسه تفوق تاثير جراثيم الفطر كطعوم والمحمله على بذورالدخن اذ بلغت نسبة الهلاك 65.56 و60.01 % في الحوريات والكاملات على التوالي واقلها عند الرش بمعلق الفطراذ بلغت 51.12 و45.56 %. وبينت الدراسه ايضا انه كلما زادت فترة التعرض لجراثيم الفطر زادت نسبة الهلاك , اذ بلغت نسبة الهلاك 80.01 و76.68 % بعد سبعة ايام في الحوريات والكاملات على التوالي واقلها 24.45 و50.01 % بعد ثلاثة ايام. واظهرت النتائج تفوق راشح الفطرالخام رشا عند التركيز 100% اذ كانت اعلى نسبة هلاك 60 و48.69 % في الحوريات والكاملات على التوالي واقلها 31.12 و25.56 % عند التركيز 25% . وبينت النتائج ايضا ارتفاع نسبة الهلاك عند زيادة الفتره الزمنيه للتعرض لراشح الفطر, اذ بلغت اعلى نسبة هلاك 83.33 % و70 % بعد سبعة ايام في الحوريات والكاملات على التوالي واقلها 20 % و13.33 % بعد ثلاثة ايام .Abstract The research was conducted to study the effects of Tricoderma harzianum on Nymphs and Adults of the field cricket Gryllodes aigllatus (Gryllidae : Orthoptera ) . The study showed that the best effect was obtained by using T. harzianum as baiting with millet seeds , which gave amortality percent of 65.56 and 60.01% for nymphs and adults respectively .While it was found that the mortality was decreased to 51.12 and 45.56 % for nymphs and adults respectively when T.harzianum suspension was applied as spraing . The results reveal that the mortality increased when exposure period increased it had been 80.01 and 76.60 % for nymphs and adults respectively after seven days. The study also showed that the mortality reached to 60 and 48.89% for nymphs and adults respectively when the fungus exudates was used at concentration of 100% from the other hand it was found the mortality increased when the exposure time to exudates increased , it had been 83.33 and 70 % for nymphs and adults respectively after seven days for the treatment , whiel it was 20 and 13.33 % for nymphs and adults respectively after three days . | ||
|
Statistics Article View: 100 PDF Download: 35 |
||