The leaves and buds of the staple food of the hummer horse make the host leaves form many long yellow-white or gray-white markings, and the leaves are distorted and deformed. Weeds can be removed from the field and defoliation of stumps, concentrated burning or deep burial, eliminate the overwhelming insects. Strengthen the management of fertilizers and water, and promote the robust growth of plants. It is also possible to use 80% dichlorvos EC 1000 times, or 25% synergist quinolone EC 1000 times, or 50% phoxim EC 1000 times, or 20% extinguish diclofen 3000 to 4000 times, or 4.5% Beta-cypermethrin 3000 ~ 3500 times liquid spray.
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