Hawthorn leafhopper, also known as Hawthorn red spider, belongs to the order Acarina, leafhopper family. In China's pear and apple production areas have occurred, damage pears, apples, peaches, mountains and other fruit trees.

Harmful shape, sucking buds, leaves and fruit sap, the leaves were initially exposed to many small chlorotic spots, gradually expanded into pieces, when the whole pale leaves pale brown, the back of the leaves are brushed and knotted, leading to early leaves, often resulting in two Secondary germination and flowering weakened the tree.

The morphological characteristics of the female adult aphid winter and summer type II, winter type body length 0.4 ~ 0.6 mm, red and shiny; summer type body length 0.5 ~ 0.7 mm, purple or brown, behind the body half a black spot on both sides, foot light yellow.

The juveniles have 3 pairs of feet and the body is roundish-yellow and white. After feeding, the eggs turn pale green and dark green spots appear on both sides of the body. If it satisfies 4 pairs, it is light green and full of light yellow, with bristles on the back of the body and dark green markings on the side of the body.

Ovoid, yellowish to orange-yellow, orange-red before hatching.

Life history and habits: Northern fruit areas occur from the 5th to the 9th generation in 1 year, and all of them are clustered in the earth seams in the gaps and near the trunk of the tree with fertilized female nymphs, and the secondary buds are swollen. The daily average temperature reaches 9 to 10°C and the activity starts. The falling period of the pears is a period of high yield, and after the leaf spreading, the back of the leaves is damaged. In this period, the pods are concentrated on the branches near the main branch and trunk, and the peak period of egg lay is before and after apple blooming. 8 to 10 days of hatching, at the same time there is Chengyu, after the second generation overlapping generations, before the first half of May before the density of insect population is low, in June increased exponentially, reached the peak in July, the spatial distribution of the period for the accumulation type, In the early canopy, there were more internal canopies, and in the middle and late stages, the entire tree was distributed. Since early August, due to more rainwater and the control of natural enemies, the reproduction of the mountain plant leafhoppers was restricted, and the number was reduced in September and began to produce winter. Females become females.

Control methods
1, adult trunk before the winter trunk stalks to trap and kill overwintering female.
2, pear dormancy scraping old, precipitous skin, especially the main branch of the scraping branch above the old, prevariant skin.
3. Combine other pests before germination, spray lime sulfur, or diesel emulsion with oil content of 3% to 5%, especially after scraping.
4. Chemical control during growth period, spawning period can spray 20% tetracycline (deuterated net, Apollo) from 2000 to 3000 times, and 5% Nissoline 1000 to 1500 times liquid , Mixing period of drug type and concentration: 1.8% Qi Qi Su (avermectin) 4000 ~ 6000 times liquid, 15% broom net 2000 times liquid, 73% Kekeite 2500 ~ 3000 times liquid and other killing Agents are used interchangeably.

    Most people will have already given a urine sample at some point in their lives. A sample can be analyzed using a number of different tests. These tests can help doctors diagnose certain diseases or to monitor their progress. For example, Urine Test Strips can show whether you may have a urinary tract infection or diabetes.
    A rapid Urine Test is the quickest way to test urine. This involves dipping a test strip with small square colored fields on it into the urine sample for a few seconds. After that you have to wait a little for the result to appear. Depending on the concentration of the particular substance you are testing for, the fields on the test strip change color. Then the resulting colors of the fields are compared with a color table. The color table can be found on the urine test package. It shows which colors indicate normal and abnormal values.

Urine Test Strips

Urine Test Strips,Urine Test Strips For Diabetic,Urine Strip 10 Parameter,Urine Testing Equipments

Changchun Medicon Technology Development Co., Ltd , https://www.jlmdk.com