Main symptoms: Aphids, also known as greasy insects, are pests that often occur in cucumber production. On the back of the melon leaves or on the young stem buds, the juice is curled and deformed, and the virus is transmitted. When the mites are harmed, a large amount of honeydew is also polluted to contaminate the leaves and fruits, causing parasitic bacteria and affecting photosynthesis.
Prevention:
1. Clean up the countryside. Remove the weeds in the fields and the ground in time, dispose of the broken leaves, and spray disinfectant in time for disinfection.
2, physical and biological control: the use of yellow plate trapping, the use of silver-gray film for ground coverage or hanging in the greenhouse, greenhouses and other fields between the silver-gray film strips, can play a role in the use of insects. Biological control can be controlled by spraying with microbial pesticide BT emulsion.
3. Strengthen field management, improve plant disease resistance, and rationally topdress and water.
4. Prepare the tobacco leaf water in a ratio of 1:15 and spray it after spraying for 4 hours.
5. Spray with a solution of detergent powder, urea and water in a ratio of 1:4:400.
6, with 95% mineral oil 200 times solution, used 3-4 times; or nicotine, cucurbitine and other prevention and treatment.
7. Use natural enemies such as ladybugs and grasshoppers for prevention and control.
Moisturizing is the foundation of skin care. The basic skin care products that are indispensable for moisturizing and hydrating such as lotions, lotions and essences, how in the end should I choose the real moisturizing products? The easiest way is to look at the active ingredients of the product. Common Cosmetic Ingredients series, common moisturizing ingredients, let's take a look.
1, glycerin, the scientific name of propanetriol, glycerin can be classified as a natural ingredient moisturizer, mild texture, not easy to cause skin allergies, etc.. But glycerin itself is only moisturizing and no skin care function, so it works well for young, healthy skin. If the skin needs multifaceted maintenance, then the maintenance products also need to contain other effective ingredients and glycerin with the use.
2, collagen, collagen on the skin care although important, but its due to the molecular large, directly applied when not accepted by the skin. The real improvement of the skin collagen content is the use of collagen boosters, such as vitamin C, vitamin B3, vitamin A.
3, hydrolyzed collagen, hydrolyzed collagen is the large molecule of collagen to hydrolyze the processing into a small molecular weight of protein. The hydrolyzed protein is not as good as other moisturizers in terms of pure moisturizing effect, but has a certain function of improving skin texture. When you are shopping, make sure that the collagen in the maintenance products is labeled "hydrolyzed collagen", which is the collagen that can be absorbed by the skin. The actual fact is that you can find a lot of people who are not able to get a good deal on this kind of things.
4, amino acids, amino acid moisturizing mechanism and other moisturizers are different, it does not have a strong water absorption, but the skin moisture has a regulatory role, because the moisture content in the stratum corneum is reduced, the amino acid content at the same time reduced, so the maintenance products in the addition of amino acids is necessary to maintain the normalization of keratin function, but amino acids do not belong to the "main moisturizing factor "The main factor is the fact that it is not the main moisturizing factor.
5, natural moisturizing factor, the main components of natural moisturizing factor are amino acids, sodium lactate, urea, etc.. In pure moisturizing effect is not as good as glycerin, but because of its good skin-friendly, can regulate the skin pH function and maintain the normal operation of the keratin, not only has a moisturizing function, but also a certain maintenance function, is also indispensable moisturizing ingredients.
Moisturizing Raw Materials,Nourishing Skin,Aloe Vera Gel Powder
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