Infection of Rice Brown Planthopper, Nilaparvata lugens (Homoptera: Delphacidae), by Field Application of Entomopathogenic Hyphomycetes (Deuteromycotina)

Autor:	Donald W. Roberts, B. M. Shepard, R. M. Aguda, M. C. Rombach
Rok vydání:	1986
Předmět:	Ecology Metarhizium anisopliae Beauveria bassiana Biology Hyphomycetes biology.organism_classification Metarhizium flavoviride Conidium Horticulture Insect Science Botany Brown planthopper Delphacidae Ecology Evolution Behavior and Systematics Mycelium
Zdroj:	Environmental Entomology. 15:1070-1073
ISSN:	1938-2936 0046-225X
DOI:	10.1093/ee/15.5.1070
Popis:	Five entomopathogenic Hyphomycetes were tested under field conditions for biological control of brown planthopper, Nilaparvata lugens (Stal), in rice. Suspensions of conidia of Metarhizium anisopliae (Metsch.) Sorokin, M. flavoviride Gams & Roszypal, Beauveria bassiana (Bals.) Vuill., and Hirsutella citriformis Speare were applied at a rate of 4–5.1012 conidia per ha. In addition, M. anisopliae and Paecilomyces lilacinus (Thorn) Samson were applied as preparations of dry mycelium at a rate of 1.5–2 kg/ha. Mortality due to fungus infection ranged from 63 to 98% 3 weeks after application. There were no consistent differences between fungus species. The mycelium preparation sporulated on the plant and was as effective as the conidia suspension in infecting brown planthopper. Hyphomycetous fungi should be evaluated further for control of brown planthopper in rice.
Databáze:	OpenAIRE
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