| Titles |
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English :
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Impact of releasing Trichogramma evanescens (Westwood) and chemical insecticides on the infestation by Chilo agamemnon and Saccharicoccus sacchari (Cockerell) in Sugarcane field.
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Arabic :
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تأثير أطلاق طفيل التريكوجراما ايفانسيس وبعض المعاملات الكيمائية على الإصابة بدودة القصب الصغرى وبق القصب ألدقيقي في حقول القصب
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| Abstract |
Field studies were carríed out to determine the effect of of Trichogramma evanescens releasingalone or with chemical insecticides (Malathion, Admiral and sulphur) against the purple lined borer, Chilo agamemnon Bles. and pink sugarcane mealy bug, Saccharicoccus sacchari (Cockerell) at Naga-Hammady, Quena Governorate in 2002 / 2003 and 2003 / 2004 sugarcane (C.9/54 commercial Varity) seasons. The true egg parasitoid, T. evanescens was released at rate of 25000 adults / feddan over 5 location (each divided to 6 equal plots) in July lst. Releasing the parasitoid led to lower damage by C. agamemnon (8.64 % infested joints and 0.83 % dead top / 120 plants) in 2003 season and (8.24 % and 0.83 %), in season 2004 showing reduction percentages in the infested joints and dead top than control by 62.61 and 91.96 % in 2003 season and by 65.46 & 94.14 % ín 2004 season, respectively. Among the different chemical insecticides treatments, plots received Admiral flowed by Malathion, (30 days between sprays and started after 30 days of parasitoid release) may be fairly considered as highly effective against the two studied pests, it reduced means numbers of mealy bug / plant (two season means 3.63 and 2.51/ plant). Treatments by these two materials caused plants to harbour a total of 26 infested plants/ 120 plants indicating % infestation by 21.67, consequently reduction percentages than control by 45.83 %, in 2003 season, respectively. The corresponding values of subsequent season were 29, 24.17 % and 44.22 %, respectively. Regarding the infested joints recorded on sugarcane plants, it is clear that this treatment was the most effective as plants haibour two season % infestation 3.05 and 3% indicating 86.74 and 87.43 % highest reduction than control, respectively. These percentages showing significant lower than those of control and parasitoids release treatment. The highest reduction percentages of dead top plants (86.74 and 88.21 %) than control were also, observed for this treatment. The lowest means dead top plants (0.33 and 0.33) were recorded from this treatment indicating the lowest % infestation by 1.67 and 1.67 % for the two seasons, respectively.
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| Publication year |
2006
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| Pages |
717-726
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| Availability location |
معهد بحوث وقاية النباتات
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| Availability number |
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| City |
مشتهر
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| serial title |
حوليات العلوم الزراعية بمشتهر
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| ISSN |
1110-0419
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| Author(s) from ARC |
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| Agris Categories |
Pests of plants
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AGROVOC
TERMS |
Chemical control.
Chilo agamemnon.
Trichogramma evanescens.
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| Proposed Agrovoc |
Saccharicoccus sacchari;
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| Publication Type |
Journal
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