PATHOGENICITY OF VERTICILLIUM LECANII (=LECANICILLIUM MUSCARIUM.) ON BROWN TAIL MOTH EUPROCTIS CHRYSORRHOEA (L.) LARVAE. AT LABORATORY CONDITION

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FARSI M.J.; ASKARI H.; TALEBI KH.

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Journal: Year:2003 | Volume:16 | Issue:60 (IN NATURAL RESOURCES) Page(s): 52-58

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Title

PATHOGENICITY OF VERTICILLIUM LECANII (=LECANICILLIUM MUSCARIUM.) ON BROWN TAIL MOTH EUPROCTIS CHRYSORRHOEA (L.) LARVAE. AT LABORATORY CONDITION

Author(s)

FARSI M.J. | ASKARI H. | TALEBI KH. | Issue Writer Certificate

Keywords

VERTICILLIUM LECANIIQ4

LECANICILLIUM MUSCARIUMQ4

EUPROCTIS CHRYSORRHOEAQ2

BIOLOGICAL CONTROLQ4

BIOASSAYQ2

Abstract

Euproctis chrysorrhoea is an important defoliator of oak and a number of hardwood tree species. Its irritant hairs make it a sanitary important insect on humans. Introduction of a suitable biological agent with the other control measures is quite important especially in the case of population outbreaks. V. lecanii strain DAOM 198499 grown on a solid culture medium was used for pathogenicity and BIOASSAY procedures. Suspensions of 104, 105, 106, 107 and 108conidia/ml with a control (distilled water) containing Triton X-100 was used on third instar larvae in a complete randomized design with three replications. In other experiments, treatments included two suspensions (106 and 108 conidia/ml) and two durations of 97±2 percent RH supply (24 and 48 hours after spore application), with or without desiccant material on third instar larvae. A factorial complete randomized design was applied. In the first experiment suspensions of 107and 108 conidia/ml gave a significantly better result than the others (p<0.01).LC5o, determined by proc probit analysis required a concentration of 7.2x106 conidia/ml. Over 50% larval mortality was observed only in 107and 108 conidia/ml suspensions and LT50 was measured by life test procedure as 7±0.31 and 5±0.22 days, respectively. Maintenance for 48 hours at high RH gave an average mortality rate of 90.95%, significantly different from the 40.44% mortality rate after 24 hours (p<0.01).This is the first report of the pathogenicity of this strain of VERTICILLIUM LECANII on brown tail moth larvae.

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References

PATHOGENICITY AND VIRULENCE OF ENTOMOGENOUS FUNGUS, VERTICILLIUM LECANII (ZIMM.) VIEGAS ON THE PEA APHID, ACYRTHOSIPHON PISUM (HARRIS)

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APA: Copy

FARSI, M.J., ASKARI, H., & TALEBI, KH.. (2003). PATHOGENICITY OF VERTICILLIUM LECANII (=LECANICILLIUM MUSCARIUM.) ON BROWN TAIL MOTH EUPROCTIS CHRYSORRHOEA (L.) LARVAE. AT LABORATORY CONDITION. PAJOUHESH-VA-SAZANDEGI, 16(60 (IN NATURAL RESOURCES)), 52-58. SID. https://sid.ir/paper/20057/en

Vancouver: Copy

FARSI M.J., ASKARI H., TALEBI KH.. PATHOGENICITY OF VERTICILLIUM LECANII (=LECANICILLIUM MUSCARIUM.) ON BROWN TAIL MOTH EUPROCTIS CHRYSORRHOEA (L.) LARVAE. AT LABORATORY CONDITION. PAJOUHESH-VA-SAZANDEGI[Internet]. 2003;16(60 (IN NATURAL RESOURCES)):52-58. Available from: https://sid.ir/paper/20057/en

IEEE: Copy

M.J. FARSI, H. ASKARI, and KH. TALEBI, “PATHOGENICITY OF VERTICILLIUM LECANII (=LECANICILLIUM MUSCARIUM.) ON BROWN TAIL MOTH EUPROCTIS CHRYSORRHOEA (L.) LARVAE. AT LABORATORY CONDITION,” PAJOUHESH-VA-SAZANDEGI, vol. 16, no. 60 (IN NATURAL RESOURCES), pp. 52–58, 2003, [Online]. Available: https://sid.ir/paper/20057/en

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