What effect does validamycin have on fruit trees
Validamycin is an antibiotic produced by actinomycetes, with strong systemic activity; it is easily absorbed by fungal cells and rapidly translocated within them, interfering with and inhibiting fungal cell growth and development. So, what effects does validamycin have on fruit trees?
1. Effects of validamycin on fruit trees
Validamycin can control fruit tree ring rot, anthracnose, peach brown spot, and peach leaf curl. Validamycin is low in toxicity to humans and livestock, safe for fish and bees, and does not pollute the environment. Common formulations include aqueous solutions and water-soluble powders; they should be stored in a cool, dry place, protected from sunlight and freezing.
2. How to use validamycin
1. Control of rice diseases
For sheath blight, generally from after the rice canopy closes to the early heading stage or the early peak outbreak period, use 100-150 grams of 5% soluble powder per mu each time, diluted in 75-100 kg of water, and spray or splash onto the middle and lower parts of the rice, with an interval of 7-15 days, applying 1-3 times; for rice false smut, at the booting stage of rice, use 100-150 ml of 5% aqueous solution per mu, diluted in 50-75 kg of water for spraying.
2. For the control of cotton damping-off, use a 500-1000 times dilution of 5% aqueous solution, and drench the seedling bed at a rate of 3 ml per sq m of solution.
3. For the control of wheat sheath blight, use 600-800 ml of 5% aqueous solution per 100 kg of seed, spray evenly onto the wheat seed with a small amount of water, mix well, pile and cover for a few hours, then sow. Alternatively, when the disease plant rate in the field reaches about 30%, use 100-150 ml of 5% validamycin aqueous solution per mu, diluted in 60-75 kg of water for spraying.