Method for preventing and controlling anthracnose in dendrobium

Abstract

The invention belongs to the field of dendrobium cultivation methods and provides a method for preventing and controlling anthracnose in dendrobium, which is characterized by comprising: uniformly mixing and stirring 300 to 500-fold diluted solution of salicylic acid, 100 to 200-fold diluted solution of difenoconazole and 0.5 to 0.8 percent of T-20 in a volume ratio of 5:2:1 to obtain chemical solution; and uniformly applying the chemical solution onto surface of leaves when anthracnose does not happen in the dendrobium or scabs start to appear on the leaves. When the method provided by the invention is used, anthracnose in dendrobium can be prevented and controlled with high efficiency, residues are avoided, the ornamental value of the dendrobium is unaffected, the scabs are reduced greatly, the spread speed of the scabs are is lowered, and thus, the yield of dendrobium is improved.

Description

technical field [0001] The invention belongs to the field of flower cultivation methods; in particular, the field of dendrobium orchid cultivation methods. Background technique [0002] Dendrobium nobile belongs to the genus Dendrobium orchidaceae, and is a perennial deciduous herb. The stems are clustered, erect, and the upper part is slightly folded, slightly slanted, yellow-green, with grooves. Leaves are subleathery, short round. Racemes, large, semi-drenched flowers, white, yellow or pink, colorful, very beautiful, and many species have a fragrant smell. Dendrobium likes warm climates, is not cold-resistant, avoids direct sunlight, and grows well in bright and semi-shady places. The suitable temperature for growth is 18-30°C, 16-21°C is more suitable for the growth period, 16-18°C for the dormant period, 10-13°C for night, and the best temperature difference is 10-15°C. Dendrobium prefers light in cultivation, shading 50% in summer and autumn, and 30% in winter and ...

AI Technical Summary

Problems solved by technology

Dendrobium stems and leaves are thick, nutritious, delicate, vulnerable to diseases, which greatly reduces its ornamental value, especially when diseases occur, the damaged parts will rot quickly, sometimes causing the death of the whole plant, and because Dendrobium grows in In a high temperature and high humidity environment, the disease reproduces quickly and is difficult to control and prevent

Therefore, when the disease occurs, if the prevention and control is not effective, the disease will gradually spread, and even cause the overall planting shed disease of Dendrobium orchids, resulting in huge losses.

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