Integrated Pest Control Technology of KiwiFruit (3)

Second, the main pest of kiwifruit

Coleoptera: Small-scaled nails Apple blue jumping beetles Homoptera: Mulberry white borer Grasshopper Horned wax borer

Homoptera: Spotted waxhopper Small green leafhopper Black-tailed large leafhopper

Hemiptera: Hemp-winged bug Tea-winged bug Green Mantle [Microsoft user 17] bug

Tick mites: Red spiders

Mollusk phylum: Wild slugs

Coleoptera: Scarab (Apple scarab scarab)

Lepidoptera: Fruit-sucking nocturnal moth twill nocturnal moth Jujube inchworm,

Lepidoptera: Poison moth Golden retriever

(1) Small salary nail: Coleoptera is the main pest of the Shaanxi kiwifruit. Small salaried nails occur in kiwifruit for a generation in the previous year, first seen in mid-May, increased in late May, peaked in June, and decreased to disappear after mid-July as temperatures increased. It is mainly distributed on the leaves and fruits. It is active in hidden parts such as around the fruit stalk, calyx concave and tangent between the two fruits, and generally does not cause harm when the amount of insects is small, and when the number is large, it can cause the fruit surface to become scab-like, which seriously affects the commerciality of kiwifruit. According to the survey, the victimization rate of adjacent double fruits can reach more than 65%. Therefore, when thinning flowers and fruits, pay attention to the distance between fruits and fruits, and try not to leave double fruits.

(2) Apple blue-jumping beetle: belongs to the coleoptera leafaceae family. The main leaf eater causes a lack of engraving or holes

Occurrence law: A [Microsoft user 18] occurs in 2 generations a year to overwinter with adults. At the end of March of the following spring, when the willow trees germinate, the overwintering adults begin to feed, crosstail and lay eggs, mid-April is the cluster pest and tailing period, from early April to mid-May into the peak of spawning, the first generation of larvae also hatched, and from late June to mid-July into the peak of feathering. [Microsoft user 19] Followed by spawning, incubation, larval aging pupae, mid-to-late September for the second generation of adult feathering peak, after mid-October successively into the wintering place, no tail to overwinter.

(3) Mulberry white borer: belongs to the family Offinchopterae, with nymphs and female adults clustered on the main trunk and branches to suck sap as a pest, and the affected branches are covered with gray and white by the insect body, and the growth is poor, resulting in the weakening of tree potential year by year, and the serious ones die.

Occurrence pattern: A [Microsoft user 20] occurs in 2 generations a year, with fertilized female adults overwintering in clusters on branches over two years old. The following spring when the fruit tree buds begin to suck sap, the insect body expands, in late April began to lay eggs under the female insect shell, in early to mid-May is the peak of egg laying, mid and late late is the peak of egg hatching, the first generation of nymphs appear, scattered crawling to 2-5 years old branches to suck sap, in order to branch at the branch and the vaginal side more. After 7-10 days, the nymphs fix on the branches begin to secrete woolly wax filaments, which gradually form a clam shell that spreads throughout the trunk and branches. The first generation of adults feathered in late June, the second generation lays eggs around early July, and the second generation of nymphs appears in late July. Female adults overwinter after mating and fertilization from late September to early October.

(4) Grasshopper: belongs to the family Homoptera. Nymphs are mainly used to suck the sap of branches and leaves.

Pattern of occurrence: A [Microsoft user 21] year occurs a generation. In May, the female overwinters in the soil cracks 5-10 cm deep around the trunk or under stones, secretes white woolly oocysts, and lays eggs that are more summer than winter. Nymphs hatch in mid-March. The first-instar nymphs are inactive and often live in groups in a shelter, and after 3 years of age, when the weather is sunny and warm, they climb up the trunk of the tree to suck the sap of young branches, young shoots and leaves that are 1-2 years old, which is seriously harmful. Male nymphs pupate in the trees, molt three times and then develop into adults, and die after mating with female adults. After the female adults cross their tails, the lower tree burrows into the soil layer around the trunk of the tree, secretes white cotton as an egg sac to lay eggs, and then gradually matures and dies.

(5) Horned wax borer: belongs to the family Homoptera. Adult and nymphs suck sap on leaves and young branches, weakening trees and inducing soot disease.

Occurrence pattern: One generation occurs every year. Female adults overwinter on the branches, female adults lay eggs in their wax shells in late April of the following year, nymphs begin to hatch and crawl out in mid-May, and look for suitable tender shoots to fix the sap sucking as a pest, June to August is the main pest period of nymphs, and late September and early October are the feathering periods of adults.

(6) Spotted wax cicada: belongs to the family Homoptera. Adults and nymphs suck the sap of kiwi fruit stems and leaves, affecting the growth of branches in the current year and the yield of kiwi fruit in the following year. The damaged leaf begins to appear needle-eye-sized yellow spots on the leaf, and soon becomes a dark brown, polygonal necrotic spot, which is later perforated, and multiple holes are connected together to form a cracked leaf, and sometimes the damaged leaf curls to the back. The excrement of the spotted wax cicada resembles honeydew and often attracts bees, flies and mold parasitism. After the mold parasitizes, the branches turn black-brown, the bark is cracked, and the tree body dies in severe cases.

Occurrence pattern: One generation occurs every year. It overwinters as egg masses in a hidden area on the sunny surface of the tree or in the branches of the branch, hatching into nymphs in mid-to-late May of the following year, and feathering into adults from mid-June to late July. Both nymphs and adults are clustered and jumpy, and nymphs are also suspended dead.

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