The jujube is often referred to as the jujube. In the germination stage of jujube trees, larvae are harmful to the buds, apples, pears, tender shoots, young leaves and flower buds. In severe cases, jujube buds, jujube leaves and flower buds can be eaten, which not only reduces the output this year, but also directly affects next year's Yield. The pesticide network Xiaobian teaches you specific prevention measures for your reference:
The jujube is often wintering in the soil 3-20 cm deep under the canopy. In recent years, the base of the trunk has more winters. The larvae of the jujube buds began to hatch during the germination period, and the hatching period of the jujube ridges in March and April. Larvae like to disperse activities, crawl quickly and can spit and spread with the help of wind. The emergence of adult worms is greatly affected by the weather. The high-temperature sunny days are more likely to be emerged, and the cloudy days or rainy days with low temperatures are less.
China's pesticide network recommends adopting an effective way to avoid jujube trees from jujube trees, and to prevent female adults and larvae from tying the plastic film strip 15-20 cm wide at the base of the trunk before emergence. The surrounding edge is compacted with soil. The interface is nailed and the upper edge is coated with an armyworm tape, which prevents the female moth from laying eggs on the tree and prevents the larvae from crawling on the tree after hatching.
Preparation of armyworm insecticide: 10 parts of butter, 5 parts of motor oil, 1 part of pyrethroid agent, fully mixed and ready; the egg is tied around a plastic film belt around the trunk to bind the grass ring to attract female moths to lay eggs. Change the grass ring once every half month from the day of adult emergence, replace it and burn it, so replace the grass ring 3-4 times; knock the tree worm to use the suspended animation of the 1st and 2nd instar larvae to shake the larva in time Elimination; pesticide control before the 3rd instar larvae spray 1500 times 25% Tianda chlorfenapyr No. 3 or 2000 times 20% Tianda hydrazide medicinal solution 1-2 times, thus effectively eliminating the larvae of larvae. For more information on pesticide control methods, please visit .
1.Product quality indicator
| Items | Indicator | ||
| Excellent | First-class | Qualified | |
| Appearance | Yellow crystalline powder | Yellow to brownish yellow crystalline powder | |
| 1-nitro-Anthraquinone,%≥ | 98 | 97.5 | 96.0 |
| 1.5,1-8-dinitro anthraquinone,%≤ | 0.5 | 0.8 | 1.0 |
2.Physicochemical properties
Yellow needle-like crystals, insoluble in water, soluble in hot DMF and other organic solvents.
3.Use
This product is an important intermediate of solvent dyes, and disperse dyes.
1-Nitroanthraquinone CAS NO:82-34-8
Anthraquinone, 1-nitro-,Nitroanthraquinone,1-Nitoanthrapuinone,1-nitroanthrachinon,1-nitro-anthraquinon,alpha-nitroanthraquinone,1-Nitro-9,10-anthraquinone,1-nitro-10-anthracenedione,1-nitroanthracene-9,10-dione
Jinan Forever Chemical Co., Ltd. , https://www.jinanforever.com