What pests and diseases need to be controlled when growing Eucommia ulmoides?
What pests and diseases need to be controlled when growing Eucommia ulmoides? Please give an introduction. The main pests and diseases of the medicinal herb Eucommia ulmoides are damping-off, root rot, leaf blight, leopard moth, and so on. For damping-off control, when preparing the land, spread ferrous sulfate powder at 105-150 kg/hm2 or spray 40% formaldehyde solution at 45 kg/hm2, then cover with grass to...
What pests and diseases need to be controlled when growing Eucommia ulmoides? Please give an introduction
The main pests and diseases of the medicinal herb Eucommia ulmoides are damping-off, root rot, leaf blight, leopard moth, and so on. For damping-off control, when preparing the land, spread ferrous sulfate powder at 105-150 kg/hm2 or spray 40% formaldehyde solution at 45 kg/hm2, then cover with grass to disinfect the soil; when sowing, mix 50% carbendazim at 37.5 kg/hm2 with fine soil and spread it on the seedbed or in the sowing furrow; in the early stage of the disease, irrigate with a 1,000-fold dilution of 50% carbendazim. In cultivated land with a high water table or poor drainage, Eucommia ulmoides is prone to root rot, and the whole plant dies, so drainage should be strengthened; at the same time, dig out the diseased trees and burn them, and disinfect the tree holes with 50% formalin. Leaf blight harms the leaves, and in severe cases the leaves wither and die, so the nursery should be cleaned, and during the growing season spray a 1:1:100 Bordeaux mixture for control. For leopard moth control, clean the field in winter; in early June, before the adults lay eggs, brush the tree trunks with whitewash, and during the larval hatching period spray the trunks with a 400-800-fold dilution of 40% dimethoate emulsion.
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