The adults of the leaf miner are 2 to 3 mm in length and 5 to 7 mm in wingspan. The bodies are dark gray and resemble flies. The larvae are verrucous, about 3 mm long, pale yellow. Eggs are gray and prolific in the dorsal margin tissues. After hatching, the larvae form a tunnel inwardly and leaf-eating the meat. After aging, they phlegm at the end of the tunnel.
The faba bean was damaged by wind at the initial stage. The leaves were slightly wilting and the edges slightly curled toward the foliage. With the increase of the degree of damage, the veins on the front surface of the leaves are rust-colored, and there are sporadic and irregular rust-colored stripes in the stems and leaves. The veins on the back of the leaves are still green. The plants are short, the growing point is withered, the calyx is atrophic and the shedding is serious. Some large scales have rust on the surface of the skin, and the skin is thicker and the beans are smaller, which resembles the danger of aphids. When the damage is severe, the whole plant withers, often misdiagnosed as rust, brown spot or aphid damage. The broad-leaved and fragile stages of faba bean were the most affected, and the fields with poor fertilizer and water conditions were prone to occur and were characterized by cluster damage. Leafminers also harm plants such as peas, lettuce, and cabbage.
The chemical control should be killed by the adults during the spawning period (see the adult fly swarm in the field) or when the larvae are stricken with a 2.5% enemy to kill 1000 times, 90% trichlorfon 1000 times, and 50% phoxim 1000 times. Liquid spray.
Convenience Food
means that it can be prefabricated, or it can be eaten now. The food is
made into semi-finished products or finished products, and then frozen.
It can be easily processed at any time and can be eaten anytime and
anywhere.
Features of convenience food:
1. Easy to eat and easy to carry. Convenience
foods are packed in specifications and are easy to carry. They are easy
to process when they are eaten. They only need to be rehydrated, thawed
or heated slightly to save time and effort.
2, nutritious, health and safety. Convenience
foods are processed with reasonable ingredients and foods, and undergo
strict sanitary inspection, sterilization and packaging, so the
nutrition is rich, safe and reliable.
3. Low cost and low price. Convenience
foods use large-scale industrialized centralized production, which can
make full use of food resources and achieve comprehensive utilization,
thus greatly reducing production costs and sales prices.
Convenience Food
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