Mammalian Safety of the Aphid-Attacking Fungus Entomophthora nr. thaxteriana12

Autor:	R. S. Soper, T. A. Bryan
Rok vydání:	1974
Předmět:	Aphid food.ingredient Ecology biology fungi Biological pest control food and beverages Fungus biology.organism_classification Spore Conidium food Germination Insect Science Botany Myzus persicae Entomophthora Ecology Evolution Behavior and Systematics
Zdroj:	Environmental Entomology. 3:346-347
ISSN:	1938-2936 0046-225X
DOI:	10.1093/ee/3.2.346
Popis:	A strain of the entomogenous fungus, Entomophthoza nr. thaxteriana (Petch), isolated from the green peach aphid, Myzus persicae (Sulzer) shows promise as a biological control agent for aphids. This isolate is intermediate in its morphology between E. thaxteriana and E. virulenta Hall and Dunn. The spore sizes, i.e. conidia 24 × 19μ, resting spores 22μ, more closely approximate E. virulenta . Lack of rhizoid production, however, has caused us to call this strain E. thaxteriana . The resting spores produced by this isolate can be stored for long periods of time and when properly treated will give up to 98% germination. Greenhouse and field studies have shown this species to be both pathogenic and virulent, giving 100% control in 3 days. The resting spores of this fungus are currently under production in the laboratory and will be field tested against the potato aphid complex in Northern Maine. Effectiveness, however, is not the only criteria which determines an insect pathogen as a good candidate for biological control. It must also be demonstrated that it is safe for man.
Databáze:	OpenAIRE
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