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Effect of Beauveria brongniartii and B. bassiana on oil palm bag worm,Pteroma pendula (Joannis)
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نویسنده
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tajuddin n.s.a. ,ali s.r.a. ,bakeri s.a. ,kamaruzzaman n.e.
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منبع
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journal of oil palm research - 2010 - دوره : 22 - شماره : APRIL - صفحه:729 -735
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چکیده
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Beauveria bassiana and b. brongniaitii strains 1,2 and 3,were evaluat ed for their pat hogenicity against the oil palm baga'orrn,pteroma pendula. in a laboratory trial,the fungal isolates were found to cause mortality of up to 100% in the first and second larval instars of p. pendula. the lethal dose causing 80% mortality values (ld80) for b. bassiana and b. brongniaitii strains 1,and 2 was 1 × 107 spores ml . the lethal time to 50% mortality value (lt,50) of all the isolates was seven days and the lethal time to 80% mortality value (lt80) was 11 days. the results suggested that alifour isolates were equally pathogenic to hagworm larvae at a high dose of spore concentrations.
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کلیدواژه
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Beauveria bassiana; Beauveria brongniartii; Efficacy; Entomopathogenic; Pteroma pendula
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آدرس
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malaysian palm oil board,p. 0. box 10620, Malaysia, malaysian palm oil board,p. 0. box 10620, Malaysia, malaysian palm oil board,p. 0. box 10620, Malaysia, pejabat risda negeri terengganu,jalan sultan ismail,20700 kuala terengganu, Malaysia
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Authors
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