Several control measures for potato mash
The larvae of the chafer. There are many species of chafers, which occur everywhere. The larvae harm the roots and tubers of the potato underground.
Harmful: The roots of the potato can be bitten into a chaotic shape, and the young tubers are eaten mostly, and the holes are bitten on the old tubers, causing dead seedlings and devastating disasters in serious cases.
Pesticide control: When applying farmyard manure, it should be fermented at high temperature to make the fertilizer fully decomposed to kill larvae and eggs. The seeds are mixed with seeds and mixed with a seed coating.
The agent treats the soil. For example, use 50% phoxim emulsifiable concentrate for 200~250g per 667 square meters, add 10 times of water. According to the “Agricultural Resources Taobao Guideâ€, combine the new high-fat film spray on 25~30kg of fine soil and mix well into toxic soil. Apply ridges, then shallow, or use the same amount of toxic soil to sprinkle on the furrow or the ground, then plough up, or 5% phoxim granules, or 5% of the granules, 2.6 square meters per 667 square meters 3 kg of treated soil can receive good results and treat both golden worms and cockroaches
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