QINGZHOU HUIHAI VEGETABLES CO.,LTD.

Ginger and ginger blast or rot disease called bacterial wilt, for production in a prone to devastating disease. The typical symptoms, plants infected by pathogen, leaf blade initially sagging performance without luster, and a yellow leaf margin from bottom to top, curled, dead end. The victim, a dark purple, the internal organization of brown rot, residual fiber. The tuber of victims, was hygrophanous, brown, dull, after rotten, leaving only a white skin, squeeze the juice out of dirty, foul smell. The root of the victim, is a pale yellow brown, and finally all decay. The disease is a primary source of infection by ginger, field soil and fertilizer and irrigation water, rainwater and underground pests spread sputtering. The high temperature and rainy season, continuous cropping, low-lying land, clay soil, nitrogen fertilizer and heavy disease.

Ginger spot disease typical symptoms of the disease in the leaves, yellow and white spots appeared on the leaf, fusiform or oblong, small, 2 - 5 mm long, middle plaque thinning, easily crack perforation. When severe lesion clouds, whole leaf like white stars, also called white spot disease. The disease is spread by rain, warm and humid conditions susceptible strains, especially humidity, plant canopy, continuous cropping, soil heavy clay is more conducive to disease.

Ginger anthracnose symptoms typical of the disease, first leaves from the tip and leaf margin appeared water soaked brown spots, after extended downwards and inwards into an oval or fusiform brown, the surface of vignetting. A number of spots together, the leaves turn brown when dry, wet, spot surface has small black spots. The disease is spread by rain or small insects. In the field of continuous cropping, the field humidity was large, and the partial application of nitrogen fertilizer was beneficial to the disease.

Comprehensive prevention and control technology

1, the rotation stubble in Allium as well, the implementation of 2 - 3 year rotation, pay special attention to a solanaceous vegetable and happened to wilt not ginger.

2, strict selection in disease-free ginger field selected strong ginger, single storage pit, storage should be sterilized.

3, site selection and preparation should choose gaosao terrain, well drained sandy loam planting. Deep plowing after lime Mushi 100 - 150 kg, high ridge, drainage ditch.

4, ginger disinfection with streptomycin sulfate, new phytomycin, kanamycin 500 mg / kg soaking for 48 hours, or Faure Marin 100 times liquid immersion, boring 6 hours each, or 30% copperoxychloride 800 times soaking for 6 hours, a grey back with fresh grass and clean incision.

5, strengthen the cultivation and management of the use of fertilizer should be fully matured, and should pay attention to nitrogen and phosphorus and potassium fertilizer, not partial nitrogen. Irrigation water should be clean and sanitary, best to use well water irrigation. Try to reduce the number of field operations, to avoid human wound. Strain found, should be timely prevention and treatment, especially ginger rot diseased plants should be removed, and then were around 0.50 meters from healthy trees be uprooted, digging in infected soil, disease at around 1 kg per hole lime or bleaching powder 125 grams, sterile plants should be buried in the soil, concentrated burned.

6, the chemical control strain found, available in 5% or 5% sulfur acid copper bleach, or 72% streptomycin wettable powder

3000 - 4000 times liquid, or 50% carbendazim 500 times liquid irrigation control of ginger blast spread nest. Can also use 20% yekuning foliar spray 1300 times liquid, or 30% copperoxychloride 800 times liquid, 50% DT WP 500 times liquid, with the use of 1:1:100 Bordeaux etc.. Foliar spray of 70% methyl sulfur bacteria Ling 1000 times liquid plus 75% times liquid and 1000 times liquid of the liquid to spot disease and the effect of anthrax.