Red spider mainly damages the leaves of Gardenia jasminoides. Red spider parasitized on Gardenia jasminoides Ellis. It mainly lived by sucking the juice of leaves and accumulated on the back of leaves. The leaves of the plants infested by spiders turn yellow and grow weakly. In addition, the reproduction ability of red spider is faster in high and dry temperature environment.
One is to keep the humidity suitable for the environment and not create breeding conditions for spiders. When the air is dry, spray often, reduce temperature and increase humidity.
2. When red spider is found, it shall be rinsed with clear water immediately to eliminate it.
Three families can use yellow tobacco leaves or smoke the rest of the cigarette butts to spray with water, the contact effect is obvious.
Scale insects are harmful to the branches and leaves of Gardenia jasminoides Ellis. Scale insects live by sucking the juice of the plant, the light ones lose their yellow leaves, the plant grows weakly, the heavy ones die, which has a great influence on the growth and development of Gardenia.
Scale insects are small in size, often gather together and secrete wax, which looks like a pile of white wax powder. Just pick it off with a wooden stick and crush it to death. Or spray 80% dichlorvos 1000 times solution to kill.
Spray 0.2-0.5 degree sulfur mixture to kill the eggs when the flowers bloom in spring every year. This method has a great effect on the prevention of insect pests.
