Plant Extract has been classified to two types by extraction methods including the standard plant extract and ratio extract in china local market. If we want to distinguish between the two types ,we can see from the ingredients that we should pay attention to. The standard plant extract will be tested of its special ingredients that in the product maybe by HPLC, UV, TLC etc,but for the ratio extract,we don't pay attention to the special ingredients that in it or not,not to mention the purity of one ingredient.if you still confused about the cllasfication,pls contact us to know more.
Ratio Plant Extracts,Ginseng Root Extract,Plant Extract Powder,Fenugreek Extract Organic Herb Inc. , http://www.organic-extracts.com
Symptoms of green pepper damping-off and blight, seedlings occur more. At the beginning of the cataplexy, water-stained lesions appeared at the base of the stem, which turned yellow-brown. The cotyledon did not wither and the seedlings fell to the ground. Rhizoctonia produces oval-shaped dark brown water-stained lesions on the stem, and the depression expands around the stem. Finally, the whole plant shrinks and dies. Viral diseases mostly occur in the middle and late stages. The leaves of the mosaic type often have thick and thin leaves. In severe cases, the leaves are uneven, but the leaves are not fallen, the veins are shrinking and deformed, the diseased plants are dwarfed, the fruits are small and small, and the yellowing diseased leaves are yellowing. , fallen leaves. The deformed leaves were strips, and the plants were short, with many branches and plexiform. Necrotic diseased leaves and diseased branches became brown and necrotic. Fusarium wilt occurs in both seedlings and adult plants, resulting in yellowing and withering of the leaf from one side of the stem to the bottom. Afterwards, it gradually expands upward and becomes semi-blight. When the disease is heavy, the whole plant withered and the vascular bundle of the diseased plant stem was brown. .
Control methods
1, nurture strong seedlings. Choose wasteland and paddy fields as breeding grounds, and disinfect the soil with 0.5 kg of enemy crushing water per acre. Before sowing, soaking in warm water at 55°C for 10 minutes, and then dressing with 50% carbendazim wettable powder 0.3% to 0.5% (to prevent wilt disease).
2, cultivation and management. Rational rotation, adequate basal fertilizer, organic fertilizer applied more, N, P and K fertilizer application ratio of 1:0.4:1.2, from the raft ditch, reasonable close planting, flowering period, the results of the period of spraying potassium dihydrogen phosphate, per acre The use of potassium dihydrogen phosphate 100 grams, 60 kg after spraying, can increase plant resistance to disease.
3, spraying control. The above-mentioned diseases should be promptly removed from the diseased plants once they occur, and lime powder should be disinfected at the diseased points, or sprayed with 75% chlorothalonil 1000 times solution to prevent the spread of diseases. To choose the right agent control: 1 damping-off and blight at the beginning of the disease with 75% white bacteria clear 600 times solution or 96% of the enemy 1000 times enemy liquid spray. 2 The virus disease is transmitted by locusts. Therefore, once the locust occurs, kill it with 2.5% enemy or 3000 times Uranus, or 1500 times the phosphorus of fruits and vegetables. At the same time, use 1000 times solution of plant disease or 20% of virus A500 times. Spray the ward. 3 Fusarium pathogens in winter or in the soil. Therefore, we must use resistant varieties, can also use 50% carbendazim or 50% thiophanate-methyl 500 times soaking root. The above liquid spray (spray) every 7 to 10 days, and spray twice.
Dongyu green pepper diseases
Green pepper is one of the main varieties of vegetable cultivation in winter and spring. In recent years, the cultivation area has been continuously expanding. Diseases in some areas have been increasing year by year, affecting the quality and yield of green peppers. Therefore, it is known as damping-on of green pepper, damping-off, virus disease, and withering. Disease must be advanced prevention and treatment.