International Journal of Nematology (2008) 18, 35-40

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M.M.A. Youssef, Wafaa M.A. El-Nagdi and A.I. Abd El-Fattah (2008)
Efficacy of chicken compost, Bacillus thuringiensis and Pseudomonas fluorescens for biocontrol of Meloidogyne incognita infecting sugar beet in Egypt
International Journal of Nematology 18 (1), 35-40
Abstract: A commercial product (AgerinR) containing an isolate of Bacillus thuringiensis subsp. aegypti (Bt) C18 and C129 spore and crystals, Pseudomonas fluorescens (Pf) cell suspension and chicken compost (Cc) were evaluated alone or in combination for the management of Meloidogyne incognita infecting sugar beet cv. Top under glasshouse conditions. All individual treatments significantly (p 0.01 and 0.05) reduced root galls and eggmasses in roots and M. incognita second stage juveniles (J) in soil. The addition of chicken compost to a commercial product of B. thuringiensis and cell suspension of Pseudomonas fluorescens gave the best nematode management than those of their single treatments. The mixture of 10 g Cc+1/2 g Bt had higher significant effect in reducing number of galls (75.0%), eggmasses (86.9%) and J2 in soil (71.6%) followed by the mixture of 7.5 g Cc and 1/2 g Bt as the reduction was 66.7; 77.3 and 55.4% for the respective nematode criteria. The mixture of 10 g CC+5 ml Pf reduced the respective nematode criteria by 63.9; 77.3 and 71.6% better than the other treatments of P. fluorescens. All treatments improved sugar beet growth, roots (tuber) and the chlorophyll in leaves. Also, the percentages sucrose, glucose, Tss and juice purity increased both at the single and combined treatments. This method of management is safe and pollution-free and it is recommended for inclusion in integrated management strategies.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Mahmoud M. Ahmed Youssef, Wafaa M.A. El-Nagdi

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection
application technology

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Meloidogyne incognita Beet/sugarbeet (Beta vulgaris) Egypt
Pseudomonas fluorescens (antagonist) Meloidogyne incognita Beet/sugarbeet (Beta vulgaris) Egypt
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