Bioinsecticide metarhizium anisopliae for pest control

Bioinsecticide metarhizium anisopliae for pest control

Published Apr 9, 2020 

Metarhizium anisopliae, formerly known as Entomophthora anisopliae (basionym), is a fungus that grows naturally in soils throughout the world and causes disease in various insects by acting as a parasitoid.

It is a mitosporic fungus with asexual reproduction, which was formerly classified in the form class Hyphomycetes of the phylum Deuteromycota.

Metarhizium anisopliae is an insect-specific parasite that is parasitic to more than 200 species of pests such as Lepidoptera, Orthoptera, Coleoptera, and Homoptera. It can be used to control a variety of pests such as agriculture, forestry, and health.

The agent is a living fungal insecticide, and the morphology of the fungus is close to that of Penicillium. Colonies are fluffy or cotton-like, initially white, green when spores are produced. The preparation is prepared by concentrating the spores and absorbing them by the adsorbent. The color of the appearance varies depending on the type of adsorbent, and the water content is less than 5%. The conidial germination rate is over 90%.

Metarhizium anisopliae has a wide range of hosts, mainly used to control planthoppers, underground pests, cockroach pests, peach worms, diamondback moth, cabbage caterpillars, and aphids.

Application of Metarhizium anisopliae

Aphids: Effective against a variety of aphids such as planthoppers, earthworms, rice bran, and bamboo crickets. 

Especially for tidal flats and non-cultivated land locusts, use 10 billion spores/gram of wettable powder for 20-30 grams, spray on water, or use 50 billion spores/ml oil suspension agent 250-500 ml, or 6 billion spores/ 200-250 ml of oil suspension in milliliters, diluted 2 to 4 times with vegetable oil for ultra-low volume spray.

Other pests

Plutella xylostella and Pieris rapae: The bacteria powder is diluted with water to form a spray of 0.05 to 100 million spores per ml.

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