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Sundi, also known as Green Leafhopper, can cause tremendous losses in moong crops. These tiny insects suck sap from the leaves, causing yellowing, stunting, and drying of the plants. Sundi infestation can reduce the yield by up to 40% and even lead to complete crop failure. Therefore, it is crucial to control Sundi to ensure a healthy and productive moong crop. Here’s some information on how to do it:
1. Cultural control: Sundi thrives in warm and humid conditions, so planting moong in the dry season and avoiding waterlogging can reduce infestation. Also, removing weeds and debris from the field can eliminate alternate hosts and hiding places for Sundi.
2. Chemical control: Insecticides are the most effective way to control Sundi in moong crops. The following chemicals are recommended for Sundi control in moong:
a. Imidacloprid: It is a systemic insecticide that provides quick knockdown and long residual control of Sundi. It can be applied as a seed treatment or foliar spray at the rate of 10-20 ml per 10 liters of water.
b. Thiamethoxam: It is a neonicotinoid insecticide that also has systemic action against Sundi. It can be applied as a foliar spray at the rate of 60-80 g per acre.
c. Chlorpyrifos: It is an organophosphate insecticide that kills Sundi on contact and has a residual effect. It can be applied as a foliar spray at the rate of 2 ml per liter of water.
d. Dimethoate: It is a broad-spectrum insecticide that can control Sundi, as well as other pests in moong crops. It can be applied as a foliar spray at the rate of 300-400 ml per acre.
Note: Always follow the recommended dosage and safety precautions when using insecticides. Also, avoid spraying during flowering, as it can harm beneficial insects and reduce pollination.
3. Biological control: Some natural enemies of Sundi, such as predatory bugs, spiders, and parasitic wasps, can help reduce their population. However, their effectiveness may vary depending on the environmental conditions and the level of infestation.
In conclusion, Sundi can cause significant damage to moong crops, but it can be controlled by using a combination of cultural, chemical, and biological methods. Farmers should monitor their fields regularly and take action promptly to prevent Sundi from spreading and causing irreversible damage. With proper care and management, moong crops can provide a bountiful harvest and contribute to food security and livelihoods in the community.