In the promotion of agricultural science and technology, fruit tree technicians guide fruit growers and try the "grey copper oil potassium permanganate solution" to treat fruit tree rot. The curative effect is remarkable. The formulation medicament has strong bactericidal power, good permeability, stable property, quick formation of Yu injury tissue, resistance to rainfall, long-lasting efficacy, and good treatment effect.
-. Formula: 1000 kg of copper sulfate, 2000 kg of quick lime, 8 g of motor oil, and appropriate amount of permanganate.
2. Preparation: First, the concentration of 1% potassium permanganate solution was slowly poured into the engine oil, stir, and then add quicklime. Copper sulfate mixture can be mixed.
Three. Treatment:
1. Treatment time: Treatment should be conducted between October and December of that year or between March and April of the following year.
2. Treatment Steps: (1). First use a sharp knife to scrape off the bark of the diseased spot (snail) on the stem or main branch of the fruit tree, reach deep into the xylem, and remove the surrounding bark obliquely 1 to 2 cm. .
(2). Lesions (ç–¤) Scratched into diamond or elliptical bevels (45 to 60 degrees) with smooth cut surfaces. (3). Apply the prepared drug solution to the scraped lesions with a small row of brushes. The application should be detailed and uniform. The application range should be more than 2 cm around the lesion.
(4). Lesion (ç–¤) Shave a piece of medicine on the spot immediately. Change the medicine after two weeks and it can be cured.
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