In June, it is the outbreak of the pest cucumber, whether it is vegetables or fruit trees, it is everywhere, it is very annoying, especially to see the bitten leaves, I really think this pest is very annoying, I really want to get rid of them all right away. But it is not so simple Oh, the control of pests still needs methods and skills, today it is mainly to harm the kiwi fruit cucumber for control.
Cucumber that harms melons
<h1 class= "pgc-h-arrow-right" > the harmful characteristics of cucumber on kiwifruit</h1>
Yellow melon belongs to the Coleoptera family, also known as the melon, yellow worm, yellow firefly, is a widespread, multi-food pest. When endangering kiwifruit, adult insects are mainly used to harm leaves and young stems, resulting in leaf gaps, holes, and young stems wilting and drying. In addition, the larvae bite the young roots in the soil, which also has a certain impact on the normal growth and development of kiwifruit.
Yellow melon adults
<h1 class= "pgc-h-arrow-right" > the life history and habits of cucumbers</h1>
In the Sichuan region, yellow melons occur once a year, and adult insects are used everywhere to overwinter in clusters of grass piles, stone crevices, soil blocks, trees, etc. From late March to early April, the overwintering adults begin to move in large numbers, feeding and mating.
Spawning is possible from mid-May to August, with the peak in June. Hatching larvae harm the roots in the soil. The larval stage is 19 to 38 days. The larvae pupate in the soil after ripening, pupate for 12 to 22 days, feather into adults from late July to late August, and then endanger the leaves of kiwifruit, and enter the overwintering in mid and late October.
Adults move, feed, mate, and lay eggs on warm sunny days. In particular, from 10:00 a.m. to 3:00 p.m., the activities are the most active, the action is lively, the flight is not easy to catch, and there is a habit of suspended animation. Sluggish or inactive on cloudy and rainy days. Strong hunger tolerance, more than 10 days without food. It has no impact on life activities, so it is often seen that it is harmful to overeating after rain. Females lay eggs 4 to 7 times a time, with an average of 29 to 35 eggs per time, and each female can lay 150 to 200 eggs. The eggs are scattered in moist soil about 3 cm. The larvae move in the soil and are generally 6 to 10 cm deep.
Cucumber mating
<h1 class= "pgc-h-arrow-right" > four methods for effective control of cucumber</h1>
The prevention and control of yellow melon should focus on the prevention and control of overwintering adult stinging activities, and be treated simultaneously in and outside the park, supplemented by soil treatment at the larval stage. Here's how:
1. Control of adult insects: In the peak period of overwintering adult insects, spray 90% crystalline insect 1000 times liquid, or 50% dichlorvos emulsion 1000 to 1200 times liquid in kiwi orchards and various melon fields nearby. Or manually kill adult insects.
Artificial capture of cucumbers
2. Control of larvae: during the peak of larval hatching, 500 to 800 times of the liquid of 90% crystalline enemy insects is used to water the roots of kiwifruit and nearby melon crops to kill the larvae in the soil.
3. Reduce the intermediate host: The intermediate parasitic plants such as pumpkins, watermelons, cucumbers, and melons of the Cucurbitaceae family should not be planted in the kiwi orchard.
4, eliminate the source of insects (eggs): in the egg laying stage, lay a layer of straw on the root of the plant, collect the eggs centrally, and wait about 7 days to take out the straw and burn the eggs to reduce the number of pests from the source.
< h1 class="pgc-h-arrow-right" > concluding remarks</h1>
Whether it is a vegetable or a fruit tree, the harm caused by cucumber is more serious, mainly hurting the leaves to affect the photosynthesis of the tree, which will interrupt the nutrient manufacturing reflux program of the tree, thereby affecting the growth and development of the entire tree. Therefore, effective prevention and control measures should be taken in a timely manner to remedy the damage loss to a minimum.