Stem rot is easy to cause peanut rot how to control peanut stem rot

Stem rot is also called inverted seedling disease and Fusarium wilt. Peanut can occur at all stages from emergence to maturity, harming peanut cotyledons, roots and stems, root neck and stem base, and suffering the most. In the seriously diseased land, peanut kernels can be infected with stem rot before emergence after germination, resulting in rotten seeds. The pathogen of stem rot invades from cotyledons or young roots, and the injured peanut cotyledons become dark brown and dry rot, and invade the roots of peanuts along the petiole, resulting in irregular brown watery disease class, the disease spot expands, encircling the base of the stem, so that the base of the stem of peanut is dark brown rot. The aboveground peanut leaves turned yellow, the leaves drooped, and the whole peanut plant withered and died.

Peanut stem rot

Prevention and cure method

The main results are as follows: (1) choose peanut seeds with aseptic or low carrier rate.

(2) seed treatment: sun-drying: before sowing peanuts, choose fine weather and peel the peanut seeds after 1-2 days. Seed dressing: mix seeds with 500 grams of "Haizhuangyuan" seedling bacterial agent or 1 kilogram of "Haizhuangyuan" microbial fertilizer or 30 grams of "Aloga" seaweed essence, first wet the peanut seeds, then evenly sprinkle them with bacterial agent or bacterial fertilizer, and turn them gently, so that the peanut seeds are evenly dipped and hung slightly.

(3) use bacterial agent and bacterial fertilizer: 20-40 kg of "Haizhuangyuan" seaweed microbial fertilizer or 10-20 kg of "Haizhuangyuan" heavy stubble should be used per mu of peanuts, and concentrated as seed cover fertilizer when sowing, in order to prevent diseases, promote roots and protect seedlings, and ensure the healthy growth of peanut seedlings.

(4) spraying control during the growing period: in the seedling stage or the middle and late growth stage of peanut, 800 times of the liquid of "Haizhuangyuan 818" was sprayed to prevent the occurrence of the disease, once every 7-10 days. When sporadic disease occurs in the field, it can be mixed with 40% carbendazim glue suspension 500 times to spray the base of peanut plant.