| Titles |
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English :
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Compatibility between the entomopathogenic fungus Metarhizium anisopliae Sorokin and some pesticides against red spider mite, Tetranychus urticae Koch
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Arabic :
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التوافق بين فطر Metarhizium anisopliae وبعض المبيدات الأكاروسية ضد العنكبوت الأحمر العادي Tetranychus urticae Koch
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| Abstract |
The compatibility of Metarhizium anisopliae Sorokin with three pesticides was studied in vitro and under field condition. Three concentrations of each pesticide were tested in the laboratory to study its effect on the mycelial growth of the entomopathogenic fungus Metarhizium anisopliae, at recommended concentrate, at half of recommended concentrate and fourth of recommended concentrate.
There is no inhibition of mycelial growth with Baioca at the three concentrates 100 % (++++). On the other hand, Bermectine has the same effect at 1/2RC and 1/4RC100 % (++++), but at RC it exhibit 50 % mycelial growth (++). However Ortus exhibit 25 % mycelial growth (+) at RC and exhibit 50 % mycelial growth (++) at 1/2RC while at 1/4RC mycelial growth was approximate 100 % (++++).
In addition, the efficacy of tested combinations (Bioranza plus, Ortus, Baioca and Bermectine) were evaluated in the field on eggplant against the red spider mite, Tetranychus urticae Koch at the recommended and half recommended rates and could be stated that, the bioinsecticide Bioranza 4%WP could be successfully used for controlling Tetranychus urticae at recommended rate (200 gm. / 100 L.) in combination of Ortus (25 cm3/100 L.) , Baioca (50 cm3/100 L.) and Bermectine (20 cm3/100 L.) at their half recommended application rates. This gives us the significance value for protecting the environment and our selves by reducing the used rates of pesticides and then less hazards and problems resulting from excessive use of pesticides achieving the significance value by decreasing the application rates of pesticides on crops and obtaining good production with less residuals and good quality.
Also, co-toxicity resulted from addition of Bioranza to Ortus, Baioca, and Bermectine against Tetranychus urticae individuals stated that, the type of joint action obtained from the addition of the bioinsecticide at its recommended RC to Ortus, Baioca and Bermectine at the two application rates induced regular joint action against Tetranychus urticae, indicating a dominated additive effect where, the additive effect for the total mortality of the combination is higher than the mortality of summation of each compound separately, Thus, the joint action of the two compounds in the mixtures was more effective against the two spotted spider mite Tetranychus urticae than the compound alone.
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| Publication year |
2009
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| Availability location |
المجلة المصرية للبحوث الزراعية
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| Availability number |
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| City |
الجيزة
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| serial title |
المجلة المصرية للبحوث الزراعية
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| ISSN |
1110-6336
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| Author(s) from ARC |
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| Agris Categories |
Plant diseases
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AGROVOC
TERMS |
Entomogenous fungi.
Metarhizium anisopliae.
Pesticides.
Tetranychidae.
Tetranychus urticae.
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| Publication Type |
Journal
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