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Register a new userكفاءة عزلة محلية شرسة من الفطر الممرض Beauveria bassiana(Balsamo) Vuill. متعايشة داخلياً مع النبات في مكافحة يرقات فراشة درنات البطاطا (Phthorimaea operculella (Zeller
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Aِl-Baath University ورقة بحثية
Publication date
2017
fields
Plant Protecion
and research's language is
العربية
Created by
Shamra Editor
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تم في هذا البحث دراسة تأثير تغذية يرقات العمرين الأول و الرابع لفراشة درنات البطاطا P. operculella على نباتات بطاطا ملقحة بالمعلق البوغي للفطر B.bassiana تركيزه (0.75×10^7 بوغة\مل).
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References used
AKELLO, J., T. DUBOIS, C.S. GOLD, D. COYNE, J. NAKAVUMA, and P. PAPARU 2007- Beauveria bassiana (Balsamo) Vuillemin as an endophyte in tissue culture banana (Musa spp.) . Journal of Invertebrate Pathology, Vol. 96, N. 1, 34–42
ALVAREZ, J.M., E.J. DOTSETH, and P. NOLTE 2005- Potato tuber worm: A Threat for Idaho potatoes. University of Idaho Extension, Idaho Agricultural Experiment Station, Moscow, ID. (31 Jan 2014). 4p
AZEVEDO, J.L., W. MACCHERONI JR, and J.O. PEREIRA 2000- Endophytic microorganisms: a review on insect control and recent advances on tropical plants. Electronic Journal of Biotechnology, Vol. 3, N. 1, 15–16
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The pathogenicity of three isolates of the fungus Beauveria
bassiana (Bals.) Vuill were evaluated on potato tuber moth
Phthorimaea operculella (Zeller) (Lep.,Gelechiidae).
Biological tests were study the pathogenicity of four
local isolates of Beauveria bassiana (Bals) orginated
from, Latakia , Homs ,ICARDA Jableh on third larval age of Bactrocera oleae.
Six different isolates of the fungus Beauveria bassiana were isolated from local
soils, which collected from two different ecosystems (Natural and Cultivated), at the
Syrian Coastal region, using the "Galleria Bait Method". The mortality caused by
these
fungal isolates against Galleria mellonella larvae was 100% after 3- 5 days post
treatment. The pathogenicity of these isolates was studied against 3rd instar larvae of
Spodoptera littoralis to detect the most virulent isolate. The mortality ranged from 75% to
100% for the all isolates at the 5th day post treatment. Spore suspension of the most
virulent isolate was used at concentration 106spore/ml by spraying it on the pupae of S.
littoralis. The percentage of adult emergence was 42% in the fungal treatment compared to
the control treatment.
The research was conducted to study an efficacy of the fungus
Trichoderma harzianumin controlling the gray mold disease on
tomato that causing by the fungus Botrytis cinerea. A local isolate
of the fungus T. harzianum was studied under laboratory conditions
using two methods: antagonism and the spore suspension.
This study was carried out to determine the efficiency of local Bacillus isolates to
control large wax moth larvae (Galleria mellonella L.) at GCSAR laboratory in 2012.
Infected larvae were collected from stored wax combs, and the bacteria Bacillus
genus were isolated from dead larvae, or that showing disease symptoms of black
brown spots on larvae cuticle. Bacterium was grown on T3 medium and identified
according to biochemical tests, and the efficacy of isolates was determined on pure
colonies of larvae. The results of biochemical tests showed that the isolates belong
to Bacillus thuringiensis. Isolates were different in pathogenicity. Bt5 isolate was
the most efficient to kill the larvae of large wax moth (72.4 %), and significantly
superior all other isolates (p ≤ 0.01). Bt1 isolate showed a significant difference
with control but non-significant difference with Bt2, Bt3, Bt4, Bt6 and Bt7 isolates.
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