Types and main dosage forms of fungal pesticides

1, Beauveria bassiana: a fungal insecticide with the longest research time and the largest application area in China. The main dosage forms are p

Types and main dosage forms of fungal pesticides

1, Beauveria bassiana: a fungal insecticide with the longest research time and the largest application area in China. The main dosage forms are powder, wettable powder, oil, emulsion and microcapsule. 2. Metarhizium anisopliae: A broad-spectrum insect pathogen. Commonly used dosage forms include powder (spore content of 2.3 billion to 2.8 billion or more than 5 billion per gram), 65,438+00% granules and 20% Metarhizium anisopliae oil suspension. 3. Paecilomyces lilacinus: parasitic fungi in vivo, and its inoculum is pure microbial live spore preparation. 4. Trichoderma. A new biological bactericide, the main dosage forms are powder and wettable powder. 5. Verticillium lecanii: The main dosage forms are powder and wettable powder.

I. Beauveria bassiana

1. Beauveria bassiana can kill pests through body-wall contact infection under natural conditions, and it has been studied for the longest time and has the largest application area in China. It is safe for people and animals and the environment, and pests are generally not easy to produce drug resistance. It can be used simultaneously with some chemical pesticides (insecticides, acaricides and fungicides).

2. The main dosage forms of Beauveria bassiana are powder, wettable powder, oil, emulsion and microcapsule, and the control targets are grubs, corn borers, pine caterpillars, scale insects, rice leafhoppers, planthoppers, thrips, Apriona germari, tea leafhoppers, tea caterpillars, soybean moth-eaters, aphids and locusts. It is especially useful for corn borers and pine caterpillars.

Second, Metarhizium anisopliae

1, Metarhizium anisopliae is a broad-spectrum insect pathogen, and its application area in pest control abroad has surpassed that of Beauveria bassiana, and its control effect is equivalent to that of Beauveria bassiana. It is harmless to people and animals, safe to natural enemies and insects, and does not pollute the environment.

2. The commonly used formulations of Metarhizium anisopliae in production are powder (spore content per gram is 2.3-2.8 billion or more than 5 billion), 10% granule and 20% Metarhizium anisopliae oil suspension concentrate, and the control targets are scarabs, weevils, needle flies, moth and butterfly larvae, midges and aphids.

Paecilomyces lilacinus

Paecilomyces lilacinus is a parasitic fungus in vivo and an important natural enemy of some plant parasitic nematodes. It is widely distributed all over the world and has the advantages of high efficacy, wide host and easy culture.

2. Paecilomyces lilacinus is a pure microbial spore preparation, which can parasitize eggs, larvae and female insects, effectively control root-knot nematodes in citrus, lemon and potato, and also have a good control effect on soybean cyst nematodes.

Four, Trichoderma

1, Trichoderma biological pesticide is a new biological fungicide, which has antagonistic effect on many plant pathogens, dual protection and treatment effects, can effectively control soil-borne fungal diseases, has a wide bactericidal spectrum, has no residual toxicity and has no adverse effects on crops.

2. There is little research on Trichoderma preparation, and the main dosage forms are powder and wettable powder, which can be used to control root-knot nematodes of vegetables or cucurbitaceae and tomatoes.

Verb (abbreviation of verb) Verticillium lecanii

1, Verticillium lecanii is an insect pathogenic fungus with wide geographical distribution and host range. It can parasitize not only insects, but also plant pathogens. At the same time, it has the characteristics of no pollution to the environment, no toxicity to people, poultry and livestock, and no infectivity to natural enemies, and can be mixed with some pesticides, fungicides and acaricides at the same time.

2. The main dosage forms of Verticillium lecanii are powder (containing 5 billion live spores per gram) and wettable powder, with a wide range of hosts. The most common are aphids, whiteflies and scale insects of Homoptera, thrips of Thysanoptera, grasshoppers of Orthoptera, midges of Hemiptera, liriomyza huidobrensis and Aedes mosquitoes.