MySheen

How to control the diseases of calla lilies

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, The main pests that harm calla lilies are: two-point spider mite, that is, cotton spider mite and cotton red spider. The back of Tetranychus urticae is oval, the back of male is rhombus, the color in spring and summer is yellow and yellowish green, there is a black patch on each side, and the body color becomes orange by the end of summer.

The main pests that harm calla lilies are: two-point spider mite, that is, cotton spider mite and cotton red spider. The back of female mite is oval, the back of male is rhombus, the color is yellow and yellowish green in spring and summer, there is a black patch on each side, and the body color becomes orange at the end of summer, and the number of female increases in late autumn. The eggs laid by the female are colorless, transparent and spherical, and then turn orange-red; the young mites are reddish oval. Tetranychus urticae generally overwintered as females and nymphs on the surface of stems, soil and the roots of rural weeds, and began to be active from late March to early April in the second year, and harmed from early May to early October. Prevention and control measures: 1. Timely removal of diseased leaves and concentrated burning; 2. Spray 1000 times of dicofol, 2000 times of good winter, or 1500 times of Icas regularly.

 
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