Heshan Village, Longjiang Town, Heilongjiang Province In order to solve the shortage of forages and forages and fodder, 1200 acres of alfalfa were planted in 2002. In the spring of 2003, pests and diseases were widespread in large areas. The prevention and control measures are described as follows:
First, the cause of the disease Because the alfalfa contains a higher protein content of legumes, and young roots and high levels coupled with early spring, are vulnerable to phlegm damage.
Second, the incidence of the phenomenon
1200 mu of alfalfa had returned to green on May 1st, and there were 1 cm tall stems on the ground. Most plants died after May 10. After careful observation, 6 to 7 aphids were found in 30 cm long loquat soil, and finally it was determined that the aphids had bitten off the roots.
Third, prevention and control measures
1, first put the water into the gutters, and put the pests and worms on the gills.
2. Fry the cornmeal or yellow bean noodles with water, and stir the lemon into the fried noodles with water, and sprinkle the fried noodles evenly on the ravioli.
Fourth, after the effects of drug use, a large number of deaths were observed. Seven days later, alfalfa grass returned to green again.
First, the cause of the disease Because the alfalfa contains a higher protein content of legumes, and young roots and high levels coupled with early spring, are vulnerable to phlegm damage.
Second, the incidence of the phenomenon
1200 mu of alfalfa had returned to green on May 1st, and there were 1 cm tall stems on the ground. Most plants died after May 10. After careful observation, 6 to 7 aphids were found in 30 cm long loquat soil, and finally it was determined that the aphids had bitten off the roots.
Third, prevention and control measures
1, first put the water into the gutters, and put the pests and worms on the gills.
2. Fry the cornmeal or yellow bean noodles with water, and stir the lemon into the fried noodles with water, and sprinkle the fried noodles evenly on the ravioli.
Fourth, after the effects of drug use, a large number of deaths were observed. Seven days later, alfalfa grass returned to green again.
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