The scale insects have a wide range of species, similar habits, and rapid spread, and are important pests of various plants. Scale insects parasitic on the branches, buds, shoots and leaves of plants, generally inactive or fixed, with female adults and nymphs sucking juice to obtain nutrients and moisture, leading to tree weakness, leaves falling. (1) Grass worms, also known as grasshopper scale insects, persimmon, naked scorpions. The main damage to peach, persimmon, pear, apple and other fruit trees and cherry, Magnolia, wax plum, Chinese rose, rose, and other garden ornamental plants. 1, morphological characteristics Female adult body oval shape, length 8 to 10 mm, width 4 to 5 mm, body back gray purple, light yellow outside, the shape of sandals, body covered with a layer of fine hair and white wax powder. The nymphs resemble their bodies and are auburn. 2. The law of occurrence occurs every year for one generation. The eggs are piled over the winter in the earth seams near the roots of trees, bark seams, litter layers, and stones. The nymphs began to appear in late February of the following year, and there were more trees in the middle and early March. After the nymphs were put on a tree, they were heavily concentrated on the 1-2 year old shoots and sucked juice. In April, the damage was the heaviest. Severely damaged branches delayed germination or even died. In mid-to late-May, the female adults descend into the tree roots and lay eggs to lay eggs, and they die after laying eggs, and overwinter over eggs. The young nymph has the habit of going to the tree on the sunrise and the tree in the afternoon. After the big nymph is no longer under the tree. 3. Prevention methods (1) Using the habit of squatting up and down the tree every day, at the beginning of March, raise a height of about 33 centimeters at the base of the trunk, spread out the sand, dig a small ditch outside, and stop the nymphs from killing and falling into the tree. The nymphs in the ditch; coat the trunk with 10 to 20 centimeters wide waste heavy machine oil (add appropriate amount of contact agent such as fenpropathrin EC), and remove the nymphs under the oil belt in time. Apply once every 10 to 15 days for a total of 2 or 3 coats. (2) The nymphs are sprayed with 0.3-degree lime sulfur, or 50% dichlorvos EC 1000 times, or 40% dimethoate EC 800-times, plus 0.1% detergent. (3) When adults lay eggs in the tree during the summer, some clods or litter is piled up at the roots of the tree to induce spawning and concentrate hunting. (b) The Japanese nymphalidae has a wide range of hosts, including ornamental plants such as crape myrtle, broad magnolia, sweet-scented osmanthus, oleander, rose, and peony, and peaches, plums, jujubes, apricots, apricots, apples, pears, figs, etc. A variety of fruit trees. 1, morphological characteristics Female adult wax shell oval, white, 3 to 4.5 mm long, the back part of the turtle shell-shaped concave pattern. The living worms were faintly brown to purple, and the nymphs were lightly red-brown at hatching. They began to secrete wax one day later and formed wax shells 7 to 10 days later. 2, the law of occurrence occurs every year for 1 generation, with fertilized female adults on the branches or leaves of the tree overwintering. The activities are resumed from March to April the following year. The sap is sucked and excretion of honeydew often induces coal pollution. During the period of wheat harvest, it is the period of spawning, the eggs are laid under the mother's shell, and the eggs hatch in late June. The nymphs crawl around in search of suitable parasitic parts to fix them, with the leaves as the majority, and a few on the petiole or shoots. The survival rate is high if there is more rainwater during hatching and hatching, and vice versa. The newly hatched nymphs can generally crawl about 80 centimeters. Long-distance transmission mainly depends on the spread of wind. From late August to late September, male and female mating. After fertilization, females continue to harm and transfer from the leaves to the shoots for winter. 3. Control methods (1) In winter, cut off worm-bearing shoots and sweep away fallen leaves, and destroy them in a centralized manner, or scrape off the overwintering parasites on the branches, or spray 5% to 10% of light diesel emulsion, and 30% to 5 degrees of Baume mixture. (2) The nymphs did not secrete wax at the initial stage of hatching or the wax was sprayed when it was initially formed. 50% of malathion EC 8001000 can be used, or 20% of EC can be 1000-1500 times. (3) For the tall trees, the method of trunk coating and injection can be used for prevention and treatment. Trunk coating: In April, lightly scrape the skin at the base of the trunk (appropriately fresh skin is exposed) into two semi-circle staggered up and down, the ring width is equal to half of the dry stem, coated with omethoate and other systemic agents 400 ~500 times, then tightly wrapped with polyethylene film, released after 15 to 20 days. Trunk injection: In the tree trunk, it is injected from three directions at a 120-degree circumferential angle. 0.2 grams of dry stem is applied per cm (active ingredient) and sealed with mud after injection. The use of internal absorption agents. (c) Brown soft crickets endanger more than 170 kinds of plants such as orchids, evergreen, milan, cyclamen, monstera, jasmine, calla lilies and cycads. 1, morphological characteristics Female adults often along the middle of the leaf veins parasitic; body oval, 2 to 4 mm long, body color changes, often yellow-green, yellow-brown or red-brown. There is a vertical ridge uplift in the center of the dorsal area. The ridges are dark brown, often with black spots scattered or integrated into plaques, forming two brown reticular bands. 2, the law of occurrence occurs every year from generation to generation, up to 3 to 8 generations, occurs in the greenhouse all year round. Wintering with fertilized female adults or 1-2 instar nymphs. 3, control methods occur lighter potted flowers can take artificial brushing method, the focus is on the back of the blade on both sides of the midrib; heavier root buried 15% iron extinguished grams or 3% carbofuran granules, basin diameter 17 cm Flower pot buried iron extinguishes about 1 grams, or carbofuran 1 to 2 grams, buried along the edge of the basin. (4) Ball crickets include a variety of ball crickets, such as peach ball wax pods and apricot ball pods, which mainly occur in peaches, apricots, cherries, plums, ash trees, willows, amorpha, purple leaves, and other fruit trees. Green plants. 1. Morphological characteristics These scale insects mainly parasitize on the branches of plants. The female adults are nearly hemispherical or spherical in shape, and their body color is yellow-brown and red-brown and so on. 2, the law of occurrence Most species occur every year 1 to 2 generations, mostly nymphs in the branches of the overcast winter, late spring trees after germination migrated to shoots fixed suction harm. May is the time when adults lay eggs and nymphs hatch. 3. The control method is the same as Japanese turtle wax.
Amino Acids
Amino acids are the basic units of proteins and are essential organic compounds in life. There are about 500 different amino acids in nature, but among the amino acids that make up the proteins of living organisms, 20 are standard amino acids, which are connected in different sequences to form proteinaceous proteins that perform various physiological functions in living organisms.
Amino acids can be divided into the following categories according to their location and function in proteins
1.Essential amino acids
9 amino acids that the body cannot synthesize by itself or the synthesis speed cannot meet the needs, and must be ingest through food, including lysine, tryptophan, phenylalanine, methionine, threonine, isoleucine, leucine, valine and histidine (infants also need histidine).
2.Non-essential amino acids
The human body can synthesize by itself and does not need to obtain directly from food, including glutamic acid, aspartate, alanine, serine, glycine, proline, cysteine, etc.
3.Conditional essential amino acids
Under specific conditions (such as disease, stress), the human body's synthetic ability is reduced, and additional supplements are needed, such as arginine, glutamine, etc.
Amino acids are also widely used in the field of skin care, as skin care ingredients, they mainly have the following effects
1.Moisturizing
Some amino acids such as glycine, alanine, etc. have good hygroscopic properties, which can help the skin retain moisture and enhance its moisturizing ability.
2.Repair
Such as arginine, glutamic acid, etc. participate in the repair and regeneration process of skin cells, promoting wound healing.
3.Anti-aging
Certain amino acids have antioxidant effects that can help fight free radical damage and slow down skin aging.
4.Cleansing
Amino acid surfactants, such as sodium lauryl sarcosine, are commonly used in cleansing products for sensitive skin due to their mild, non-irritating properties.
Therefore, amino acids are not only essential for human health, but also play an important role in beauty and skin care products.
Amino Acids,Taurine,L-Tyrosine, Food additives
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