Post by account_disabled on Dec 27, 2023 1:35:01 GMT -8
During hot weather like this Department of Agriculture Chrysanthemum growers are reminded to watch out for outbreaks of worms, leaf-causing flies. that can be found in all growth stages Farmers should observe and monitor the outbreak of adult female leafworm larvae that lay eggs inside the surface of plant leaves. When the eggs hatch, the larvae will have a pointed head and obtuse tail. The larvae burrow into the leaves of the plant. This causes white lines to zigzag back and forth.
When the plant's leaves are B2B Email List examined, small, translucent, light yellow worms are found within the tissue. If the leaf-cutting worm infestation is severe It will cause the damaged plant leaves to fall off. and will result in damage to the product. In the case where the chrysanthemum tree cannot produce replacement leaves or heavily infested by maggots and flies that bite into the leaves The chrysanthemum tree will eventually die. Farmers should collect leaves that have been infested by maggots and take them out and burn them outside the planting plot. To help reduce the spread This is because the pupae of the leaf-cutting fly larvae that live on plant leaf scraps will also be destroyed.
Then use yellow sticky glue traps at a rate of 80 traps per rai. They will be effective in catching the adult leaf-cutting fly larvae. and spray with neem extract at the rate of 100 ml per 20 liters of water. If a severe outbreak is found Have farmers spray with insecticides that are effective in prevention and eradication, such as thiamethoxam 25% DG at the rate of 3 grams per 20 liters of water or fipronil 5% SC at the rate of 20 milliliters per water. 20 liters or imidacloprid 10% SL, rate 20 ml per 20 liters of water, or emamectin benzoate 1.92% EC, rate 10 ml per 20 liters of water, or Fe Napropatrin 10% EC, rate 30 ml.
When the plant's leaves are B2B Email List examined, small, translucent, light yellow worms are found within the tissue. If the leaf-cutting worm infestation is severe It will cause the damaged plant leaves to fall off. and will result in damage to the product. In the case where the chrysanthemum tree cannot produce replacement leaves or heavily infested by maggots and flies that bite into the leaves The chrysanthemum tree will eventually die. Farmers should collect leaves that have been infested by maggots and take them out and burn them outside the planting plot. To help reduce the spread This is because the pupae of the leaf-cutting fly larvae that live on plant leaf scraps will also be destroyed.
Then use yellow sticky glue traps at a rate of 80 traps per rai. They will be effective in catching the adult leaf-cutting fly larvae. and spray with neem extract at the rate of 100 ml per 20 liters of water. If a severe outbreak is found Have farmers spray with insecticides that are effective in prevention and eradication, such as thiamethoxam 25% DG at the rate of 3 grams per 20 liters of water or fipronil 5% SC at the rate of 20 milliliters per water. 20 liters or imidacloprid 10% SL, rate 20 ml per 20 liters of water, or emamectin benzoate 1.92% EC, rate 10 ml per 20 liters of water, or Fe Napropatrin 10% EC, rate 30 ml.