Pasture control measures

The armyworm is a major pest that affects grassy plants worldwide, and it causes significant damage to crops in all provinces of China. The larvae are particularly destructive, especially when feeding on grasses such as ryegrass, Sudan grass, Dactylis glomerata, Setaria viridis, as well as staple crops like wheat, corn, and rice. Young larvae (first and second instars) feed on the leaf surfaces, creating small round holes. As they grow, third-instar larvae cause more severe damage with irregular notches, while fourth to sixth instars become voracious feeders, often stripping entire leaves and leaving only thin stalks. Adult armyworms measure between 17 mm and 20 mm in length, with a pale grayish-brown coloration and a wingspan ranging from 30 mm to 45 mm. The forewings feature two yellowish round spots near the front edge, with a larger spot on the outside and a small white dot below it. A tiny black spot is located on either side of the white dot. There is also a slanted dark brown pattern near the trailing edge of the wing tip, and a row of 7 to 9 black dots arranged in an arc from the leading edge at 1/4 to the trailing edge at 1/3. The hind wings have a gray-brown inner surface and a darker outer edge. The eggs are oval-shaped, about 0.6 mm in diameter, yellowish-white, and covered with an irregular network-like pattern on the surface. The larvae go through six instars, growing from approximately 17 mm to 20 mm in early stages to up to 38 mm when mature. Their body color varies from green to yellow-brown, with vertical lines of black, white, and brown. The head is brown to sepia, and the mouthparts are light brown with some black markings. At the end of the larval stage, there is a small, bent spine, and each side of the body has two pairs of small, curved spines. In southern regions of China, armyworms can breed year-round, producing up to eight generations per year. The first generation takes 6 to 15 days to complete the egg stage, while later generations require only 3 to 6 days. The larval stage lasts 14 to 28 days, followed by a pupal period of 1 to 3 days, then a pre-oviposition period of 3 to 7 days. The full life cycle takes 40 to 50 days. Adult moths are active at night, feeding, mating, and laying eggs in the evening. Each female can lay between 1,000 and 2,000 eggs. The larvae are known for their pseudopupae behavior, hiding during the day in grassy areas and becoming active at night. Mature larvae often burrow into the soil or under clods of earth. For control, one method involves using traps filled with a mixture of sugar, wine, vinegar, and water (in a 1:1:4:16 ratio), combined with 2.5% trichlorfon powder. These traps are placed in pots, with 2 to 3 pots per hectare, positioned 30 to 35 cm above the grass, with the lure depth set at 3 to 3.5 cm. Traps are covered during the day and opened in the evening, with dead moths removed daily. The bait should be replaced every 5 to 7 days for a total of 16 to 20 days. Another approach is manually collecting eggs by placing grass in the field and replacing it every 3 to 5 days. The grass containing eggs is then burned after collection. Chemical control typically uses safe, low-residue insecticides with no harmful effects on humans or animals. Examples include 40% New Nongbao EC diluted 800–1200 times, 25% Kangzhuang Emulsion diluted 500–800 times, 30% Horse Emulsion diluted 1000–1500 times, 90% Wan-Ling Wet Powder diluted 1500–2000 times, 20% Bangshui Emulsion diluted 1000–1200 times, and 90% Trichlorfon liquid diluted 1000–1500 times. After 15 to 20 days of treatment, the forage becomes safe for livestock and poultry. In open fields with minimal obstructions and access to electricity, "frequency-vibration insecticidal lamps" can be used to attract and kill adult moths. One lamp is installed per 40 to 60 mu (approximately 2.7 to 4 hectares), turned on in the evening and off in the early morning.

Food Grade

Rhodiola extract is the root extract of Rhodiola, which is sweet and bitter. The main ingredients are salidroside, tyrosol and losevin, which have the effects of enhancing immune function, protecting cardiovascular and cerebrovascular system, anticancer and antidepressant. Rhodiola extract is a natural extract extracted from Rhodiola crenulata, which is refined, concentrated and dried. It is very soluble in water, methanol, ethanol and ether. It is stable to heat. Rhodiola mainly contains phenylpropanoids and flavonoids. Its unique active chemical constituents are phenylpropyl esters, rosavin (the most active), rosin, rosarin, rhodiolin, salidroside and its aglycone [1], namely p-tyrosol. Only Rhodiola rosea contains rosavin, rosin and rosarin.

Product Name: Rhodiola Rosea Extract

Other name : Rhodiola crenulata

Used Part: Root

Specification: 5%

Appearance: Red brown powder

Active Ingredient: Rosavin, salidroside

Test Method: HPLC

Extraction type: Liquid-Solid Extraction

Shelf life: 2 years

Rhodiola rosea is a remarkable herb that has a wide and varied history of uses. It is thought to strengthen the nervous system, fight depression, enhance immunity, elevate the capacity for exercise, enhance memory, aid weight reduction, increase sexual function and improve energy levels. It has long been known as a potent adaptogen. Adaptogens are substances that increase the body's overall resistance and help to normalise bodily functions.

1. Rhodiola Rosea P.e can be Anti-aging, anti-anoxia, anti-fatigue and anti-stimulus effect.
2. Rhodiola Rosea P.e is used as tonic and sexual elixir for both man and woman in china.
3. Rhodiola Rosea P.e Significantly allow for improvements in athletic performance.
4. Rhodiola Rosea P.e Effects from boosting immune function to enhancing memory to improving recovery from exercise.
5. Rhodiola Rosea P.e Reduce hyperglycemia visibly.
6. Rhodiola Rosea P.e can Be effective for improving mood and alleviating depression.

1.Rhodiola Rosea P.e is Applied in food fields, it is widely used as functional food additive;
2.Rhodiola Rosea P.e is Applied in health product field, it can be used as raw material in health food, the purpose is to enhance immunity and resist melancholy;
3.Rhodiola Rosea P.e is Applied in cosmetics fields, it is widely used to delay aging and compact skin;
4.Rhodiola Rosea P.e is Applied in pharmaceutical field, it is widely used to treat cardio-cerebrovascular disease.

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