Control methods of Orchid ants
Orchid ants: orchid root is fleshy root, accumulating a certain amount of water, slightly sweet, and the surrounding soil is extremely sparse, so it often attracts ants to build nests in basin mud, making the soil loose and affecting root absorption. Prevention and control methods: according to China's ancient orchid, in a shallow bowl to hold water, put the orchid basin seat among them (can not immerse the bottom hole), in order to prevent ants from invading people. If you have found that there is an ant nest in the basin, you should immediately turn the basin to change the soil, or put something sweet and greasy around the basin to lure the ants out and hunt them step by step. You can also soak the orchid basin into the water and let the water seep through the bottom hole to drive out and drown the ants. In addition, you can sprinkle some DDT powder on the rack to prevent ants from invading the orchid basin.
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Control of Tillering Rot of Orchid
Orchid tiller rot is a bacterial disease. It mainly occurs on the tillering bud, the disease spot is water-stained mung bean at the base of the bud, and then it becomes a dark green scalded patch, which extends to the outside of the coleoptile, showing dark brown rot, and the diseased leaves are easy to pull out. Control measures: ① to control soil water content, diseased potted flowers should stop watering.
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Control methods of Orchid Sclerotinia sclerotiorum (White Silk Disease)
[symptoms] the disease began in the near-ground part of the orchid plant, showed wet rot in the form of water stains at first, then turned brown to black-brown rot, extended to the middle and upper part of the leaves, and became brown or grayish brown necrotic, and in severe cases, the whole leaf filaments withered and died. After a clump of bluegrass was infected, the tillers in the same basin could not be spared. Examination of the necrotic surface and soil surface of diseased plants can sometimes be seen in white.
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