Cold Liquid Tank,Brewing Equipment,Wine Making Supplies ,Beer Supplies Beverage Processing Machinery Co., Ltd. , http://www.nbbeerequipment.com
Red wax
Red wax medium wax intervene red wax medium, angle wax medium harm a variety of woody plants, female adults and larvae sucking young leaf juice, leaf, stem and fruit stems also occur. The damaged trees are in poor growth and the shoots are withered, and they are easily induced by coal pollution. The branches and leaves and fruit will turn black and the plants will die when they are severe. Red wax female females are nearly elliptic, waxy and thick, 3 to 4 mm long, initially rose red, later purple, the back of the central uplift, hemispherical, the top depression, umbilical, both sides of the front and back White wax ribbon, twisted upwards and stretched, the body under the wax layer. Male adults are oval in shape and have a body length of about 1 mm and dark purple. The law of occurrence is one generation in a year. The females of the fertilized winter, and in the late May to the beginning of June, the winter females lay eggs. In early June, the winter females lay eggs. In early June, the larvae hatch, and the female larvae molt their skin. Three times, mature in early September, winter after fertilization. Male larvae emerged from late August to early September. After the newly hatched larvae leave the mother, the colony is harmed on new leaves and shoots. The white wax females are white in color. The most prominent feature is that there is a small horn in the center. The males are smaller, grayish and stellate at their edges. One generation occurred in a year and the winter of fertilized female adults. The first half of May the following year is the prosperous period of spawning, and in the middle and early June the hatching period. In November, the female adults begin to overwinter. For the control of these two scale insects: 1. Check the nursery stock should be carefully checked to prevent the spread of the insect with the seedlings. 2. When the amount of occurrence is small, bamboo can be scraped off gently. 3. In combination with pruning, before the wintering female adults hatch eggs, the victim branches are cut off and brought out to burn. 4. Drug control: From the end of May onwards, check about 50 female adult wax shells every 3 to 5 days, until the end of all eggs hatching, check the amount of female adult lay eggs and hatching, when 60% of eggs hatch For the first instar larvae, the first spraying was started; when all the eggs were hatched, the second spraying was performed. The first time is generally about the middle or the end of June, and the second time is the middle or the middle of July. Spray 10 to 15 times of pine oil mixture in winter or 40 to 50 times of oil emulsion to eliminate overwintering female adults. In the first half of June, during the incubation period, spray 40% omethoate EC, or 0.3% azadirachtin 800 to 1000 times. Spray should be uniform, especially to fully spray the outer leaf and the back of the leaf. Depending on the pest situation, spray once every 7 to 10 days, and spray 2 to 3 times.