The scale insects attached to the surface of the leaves of monarch flowers, and the secretion polluted the leaves, even caused the serious consequences of the withering of the leaves.
The reasons for the occurrence of scale insects are: the sterilization is not timely, and the eggs are breeding.
In the nymph stage, spray the insecticide in time. Use 1000 times of 40% Omethoate solution to spray once every 8 days for 2 to 3 times continuously. Using white wine to mix with water can also effectively kill scale insects without damaging the leaves of imperial flowers.
It's more convenient to have flower friends with rice vinegar at home. Soaking rice vinegar with cotton ball and rubbing the damaged leaves lightly can wipe off the scale insects and kill them, and also can make the leaves turn green and bright again.
Adults are 28 mm long and 11 mm wide. Four tentacle hammers. Front chest back panel with seam trim. Scutellum small, densely covered with tawny fine hairs. The longitudinal ridges of Coleoptera are dense and obvious, densely covered with small incisions, with wide false margin and narrow margin. The Coleoptera has obvious caudate process, wide caudate process suture and groove shape. The tail process of female is slightly shorter than that of male. The first web has obvious corrugation. The male has a brownish red bristle between 1-2 internodes.
90% of trichlorfon, or trichlorfon, bran, green grass (1:100:200) baits were effective for adults of bright and soft Tenebrio beetles and big black Pipa beetles.
The nymph sucks the juice of leaves, fruits and twigs, and the damaged leaves appear green yellow and white spots. With the aggravation of the damage, the spots expand into pieces, and then the whole leaves turn pale and fall early; the flavor and quality of the damaged fruits decrease, and the young fruits often fall off seriously. Discharge of honeydew can induce coal pollution.
Early insect damage: spray 1500 times of 20% chlorpyrine wettable powder or 1000 times of 25% acaricide cream, 3000-4000 times of 2.5% Uranus cream, 2000-3000 times of 2.5% kongfu inulin cream, 2000 times of 20% fenvalerate cream and 1500 times of 10% imidacloprid wettable powder once every 10 days, and control 2-3 times continuously.
A thousand miles bank can be destroyed in an ant colony. The tyrant flower will also suffer from termites. Termites often drill into the soil, then suck on the roots, slowly destroying the growth of plants, causing the plants to wither and die.
Chlordane and Mirex are good chemicals for termite control. Spray the potion into the basin to kill termites. If there are a lot of termites, consider changing pots.
