Biological control utilizing Trichogramma evanescens (West.) and agerin (B.T.) in comparison to ethion for controlling Prays citri (Mill.) in lime orchards
Abo-Sheaesha, M. A.
Biological control utilizing Trichogramma evanescens (West.) and agerin (B.T.) in comparison to ethion for controlling Prays citri (Mill.) in lime orchards [electronic resource]. المكافحة الحيوية باستخدام طفيل الترايكوجراما و المبيد الحيوي أجيرين مقارنة بمبيد الإثيون لمكافحة فراشة أزهار الموالح في بساتين الليمون. - p.31-35.
Includes references.
The effects of two biocontrol agents against Prays citri (Mill.), namely, the egg parasitoid Trichogramma evanescens West. and Agerin (Bacillus thuringiensis) were compared to the Ethion insecticide in lime orchards, at Middle Delta (Gharbia Governorate) during two successive seasons of 2002 and 2003. The results showed that the percent reductions in the larval infestation of P. citri (compared to the untreated trees) were 62.2, 76.4 and 78.3 in 2002 and 65.9, 80.4 and 75.9 in 2003 after application of T. evanescens , Agerin and Ethion, respectively. The statistical analysis showed no significant difference between the effectiveness of the three tested control methods in reducing infestation with this pest. Importantly, the obtained results revealed that the insecticide Ethion had highly significant side effect on Bracon brevicornis and Chrysopa larvae, compared to Trichogramma and B.t. It is suggested that Agerin (B. T.) or egg parasitoid T. evanescens are suitable candidates for the control of citrus flower moth P. citri in lime orchards within an IPM system. Key Words: Trichogramma evanescens, Agerin, Ethion, Prays citri, Lime Orchards, Control, Egypt.
Summary in Arabic.
Limes--Diseases and pests.
Limes--Diseases and pests--Biological control.
Trichogramma evanescens.
Biological control utilizing Trichogramma evanescens (West.) and agerin (B.T.) in comparison to ethion for controlling Prays citri (Mill.) in lime orchards [electronic resource]. المكافحة الحيوية باستخدام طفيل الترايكوجراما و المبيد الحيوي أجيرين مقارنة بمبيد الإثيون لمكافحة فراشة أزهار الموالح في بساتين الليمون. - p.31-35.
Includes references.
The effects of two biocontrol agents against Prays citri (Mill.), namely, the egg parasitoid Trichogramma evanescens West. and Agerin (Bacillus thuringiensis) were compared to the Ethion insecticide in lime orchards, at Middle Delta (Gharbia Governorate) during two successive seasons of 2002 and 2003. The results showed that the percent reductions in the larval infestation of P. citri (compared to the untreated trees) were 62.2, 76.4 and 78.3 in 2002 and 65.9, 80.4 and 75.9 in 2003 after application of T. evanescens , Agerin and Ethion, respectively. The statistical analysis showed no significant difference between the effectiveness of the three tested control methods in reducing infestation with this pest. Importantly, the obtained results revealed that the insecticide Ethion had highly significant side effect on Bracon brevicornis and Chrysopa larvae, compared to Trichogramma and B.t. It is suggested that Agerin (B. T.) or egg parasitoid T. evanescens are suitable candidates for the control of citrus flower moth P. citri in lime orchards within an IPM system. Key Words: Trichogramma evanescens, Agerin, Ethion, Prays citri, Lime Orchards, Control, Egypt.
Summary in Arabic.
Limes--Diseases and pests.
Limes--Diseases and pests--Biological control.
Trichogramma evanescens.