01 Scarab beetles
The golden turtle shells that harm kiwifruit mainly include the great black gill golden turtle, the dark gill golden turtle, the patina golden turtle, and the Chinese arc golden turtle.
Adult insects can eat young shoots, young leaves and flower buds, etc., larvae (grubs) eat young roots, one generation occurs every year, March to May is the excavation period of the overwintering generation, and mates in June to August to lay eggs.
Adults can be trapped by black light or artificially killed, and the larvae are combined with soil ploughing during prevention and control, and sprinkled with octylthion, bifenthrin and thiamethiazide.
02 Bulge back spend salary armor
Also known as small salary armor or Oriental salary armor, it is one of the main pests that harm kiwifruit.
It is generally endangered in the form of an adult at the contact between the two fruits, eating the skin and flesh of the fruit, and forming a shallow needle-eye worm hole. Most fruit victims are flaky, raised and scabbed, which can lead to a large number of deformed fruits.
The worm occurs in two generations a year, with the first generation of adults beginning to become harmful between May and June, and the second generation being less harmful.
The key to prevention and control is the prevention and control of drugs during flowering, such as high-efficiency cypermethrin, thiamethoxam, etc.
03 Leafhopper
There are mainly large green leafhoppers, small leafhoppers, two-star leafhoppers, etc., with adults and nymphs sucking sap on the leaves, the affected leaves appear dotted and green, and then the whole leaves turn white and cause early fall, and the affected leaves and fruits are susceptible to ulcer disease.
Leafhoppers occur in 3 to 4 generations a year, the first generation of adults lay eggs in mid-to-late April, and the second generation of adults occurs from mid-June to mid-July, which is the peak of the year.
Winter garden cleaning should be removed in and around the orchard weeds, from the end of April to the beginning of May when the eggs hatch, timely medication prevention and control, the drug can choose high chlorine + thiamethoxam, etc., pay attention to supplementation in mid-to-late June.
04 Lepidoptera pests
Apple leaf curl moth: endangers the leaves and fruits of kiwifruit in a larval state, and damages the leaves and destroys the fruit. Pharmaceutical control should be carried out at the peak of larval hatching, and chlorobenzamide, bromocyanamide, acetamidine, high-efficiency cypermethrin and so on can be selected.
Twill nocturnal moth: mainly harmful to the leaf surface of kiwifruit, the most harmful from July to August, especially after the insect age enters the binge eating period, the damage to the leaves is extremely strong, and the agent can choose methyl vitamin salt + chlorantraniliproser benzamide.
Bat moth: Larvae are used as pests on the base of the kiwi trunk and the base of the main vine, often causing the bark to be circumcised, causing the upper branches to wither or break. The key to control is to reduce the damage of 2 and 3 year old larvae from the soil to tree trunks, and the soil can be treated with octyl thiophosphorus and other agents in mid-to-late April, and the larvae should be hooked and poisoned in time for those that have occurred.
05 Bugs
Common are hemp skin bugs, tea wing bugs, etc., occur 1 to 2 generations a year, with adults, nymphs to suck the sap of kiwi young leaves, young branches, and fruits, and the leaves appear green and yellow spots after being damaged; young fruits form deformed fruits after being harmed, the quality is reduced, and it is intolerant to storage.
Agents can be selected from acetamiprid, cypermethrin, thiamethoxam, bifenthrin and the like.
06 Spotted wax cicada
Adults and nymphs suck the sap of young leaves and branches, affecting the normal development of branches and leaves, and their excrement can easily induce coal pollution disease or cause atrophy and deformity of young shoots.
A generation usually occurs every year, overwintering with eggs and hatching in early to mid-April. In the nymph stage, use permethrin insecticides for prevention and control, and pay attention to hitting the back of the leaf.
07 Red Spider
There are mainly hawthorn leaf mites, dimacyle leaf mites and so on. Adults and nymphs suck the leaves, and small irregular patches of green appear on the front of the affected leaves, and gradually connect into one piece, and the entire leaf is red and yellow.
The occurrence of pest mites is more algebraic, and it is more difficult to prevent the overlap of various insect states.
Pharmacies can be selected from thiazone, avermectin, tetrazole mite nitrile, avi pyridoxine and so on.
08 Mesenchymal worms
There are mainly white shield borers, grasshoppers, mulberry shield bugs, red wax bugs and so on. Adults and nymphs suck sap on the branches and leaves, causing the tree to weaken or even die.
The best effect of drug control in the egg incubation period is selected, such as ethyl spirochetes, thiazidone, thiamethoxazine, flufenacilamine nitrile and so on.
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