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Good fungus for healthy groundnuts June 9th, 2019 by

Diseases need to be cured; this is true for people, animals and plants. In plant protection, fungicides are probably more readily seen as acceptable than insecticides, which are well known to harm the ecosystem, bees, birds and people. But plants can be protected without chemicals, as people from the M.S. Swaminathan Research Foundation in India are showing in their gradually growing series of farmer training videos.

Their latest farmer training video on root and stem rot in groundnut nicely shows how beneficial fungi like Trichoderma can control root and stem rot diseases without the need for chemical fungicides. Indian farmer Govindammal shows the viewer how she carefully coats the groundnut seed with Trichoderma, using some water to make the powder stick to the seed. She mixes it on a jute bag without using her hands, to avoid breaking the seed.

Some farmers add Trichoderma directly to the soil by mixing it in the manure. For one hectare of land, they mix two kilograms of Trichoderma with 10 baskets of farmyard manure. They leave the mix for a day in the shade before applying it to the field. The good fungi will grow faster with the manure. By broadcasting this mix on their field before sowing, farmers will grow abundant, healthy groundnuts.

Biological pest control was long restricted to insects, so when doing a Google Scholar search on root and stem rot in groundnut, I was pleasantly surprised to see that many top articles are on biological control with beneficial fungi such as Trichoderma. Indian scientists have dominated this research and hence it comes as no surprise that in India Trichoderma has become widely available as a commercial product.

Apart from their own videos, MSSRF staff have also translated farmer-to-farmer training videos that were produced in Bangladesh and Africa. MSSRF makes the Tamil versions of the videos available to farmers through its rural plant clinics and farmer learning centres.

In an earlier blog, Jeff wrote that “Extension agents can and do make a difference in farmers’ attitudes about agrochemicals, even if it takes time.” This is true, but videos can speed up this process. Besides, quality training videos will not only change the behaviour of farmers, but also extension staff, and some researchers.

Hopefully in future, we will see more research and extension in support of organic agriculture and more organic technologies will become available to farmers. As we have seen with other technologies such as drip irrigation (read: To drip or not to drip), farmer training videos can create a real demand for green technologies and trigger rural entrepreneurs to invest in them.

Watch or download the videos from the Access Agriculture video platform in English, French or Tamil

Managing mealybugs in vegetables

Managing tomato leaf curl virus

Managing bacterial leaf blight in rice

Managing aphids in beans and vegetables

Root and stem rot in groundnut (will be published in coming week)

Related blogs

Chemical attitude adjustment

A healthier way to eat groundnuts

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