Introduction and control of leaf miner, an insect pest of snake melon

Snake melon annual climbing vines; stems slender, much branched, longitudinally angled and grooved, pubescent and sparsely villous hirsute. Snake melon has well-developed roots, many lateral roots, adventitious roots, slender stems up to 5-8 meters long, five-angled and green stems, strong branching ability, green leaves, palmately parted leaves, round cracks, fine tomentose leaves, white Corolla, unisexual flowers, both male and female flowers, mostly racemes of male flowers, turquoise buds, light yellowish green when they bloom, and the occurrence of male flowers is earlier than that of female flowers. In general, female flowers begin to grow at 20-25 nodes of the main vine, and then both the main vine and lateral vines can produce female flowers continuously.

Snake melons have several green lines from the stalk, some are vertical, some bow, some bend, some curl tail, exactly like a long snake under the scaffolding. In the tender melon stage, the surface of the melon body has white and green stripes like the white flower snake, and the old mature melon body shows red and green stripes like the safflower snake, the posture is different, lifelike, strange and beautiful. If cultivated properly, each plant can bear more than 0 melons, and looking up, serpentine melons fall from the scaffolding, which is of great interest in the south and has high ornamental value, so it is a rare good variety for the development of sightseeing agriculture.

Snake melon contains 94g / 100g tender fruit, 0.5g / g protein, 0.1g fat, 0.8g crude fiber, 3g carbon / water ratio, as well as mineral salts and other nutrients. Snake melon heat-clearing and antipyretic, diuresis and blood pressure, is very beneficial to human health. Tender melons are rich in carbohydrates, vitamins and minerals. The meat is soft and has a slight smell, but when cooked, it becomes fragrant and slightly sweet. Snake melon takes tender fruit as a vegetable, but tender leaves and stems are also edible. Snake melon contains 5 grams of protein, 30 grams of carbohydrates and other nutrients per kilogram of tender fruit.

Introduction and control of leaf miner, an insect pest of snake melon

What is a leaf miner?

Leaf miner belongs to Diptera, which mainly harms lawn. The common pests in China are pea leaf miner of leaf miner family, Liriomyza sinensis, rice leaf miner of Muscidae, sugar beet leaf miner of Muscidae and so on. It has the type of sucking mouthparts, which harms the leaves of plants, and the larvae often drill into the leaf tissue and latent feed on the mesophyll tissue, resulting in irregular white spots on the leaves, gradually withering and yellowing of the leaves, resulting in the decomposition of chlorophyll in the leaves and the decrease of sugar in the leaves. When the damage is serious, the leaves of the injured plants are yellow, even dead seedlings.

Harmful symptoms of snake melon pest leafminer:

The larvae sneak under the epidermis of the host leaves and zigzag through to feed on the green tissue, resulting in irregular gray-white linear tunnels. When the damage was serious, almost all the leaf tissue was damaged, and the leaves were covered with decay channels, especially the leaves at the base of the plant suffered the most, even withered and died. The larvae can also eat young pods and pedicels. Adults can also suck plant sap to make the sucked place a small white spot.

Control methods of leaf miner, an insect pest of snake melon:

1. Timely irrigation, eliminate weeds, eliminate the source of overwintering and summer insects, and reduce the population base.

two。 Grasp the peak period of adults, timely spray to control adults, and prevent adults from spawning. Adults mainly lay eggs on the back of the leaves and should be sprayed on the back of the leaves. Or spraying to control larvae at the beginning of the harm, the larvae should be sprayed for 2 times in a row, and the pesticides can be used 1000 times of 40% dimethoate EC, 1000 times of 2000 times of omethoate EC, 800 times of 50% dichlorvos EC, 1500 times of 50% dibromophos EC and 1 000 times of 40% diazinon EC.