With the spring after temperatures rose gradually and pear trees sprout flowering. Pumping take along. Each leaves and other phenophase show, for each stage of the implementation of economic pests and diseases, high efficiency, pollution prevention, also will become dense and pear production management high-quality, high efficiency one channel carrying training priorities, spring is the basis of a year pest control.
A comprehensive prevention pear buds sprout period
1, pesticides: 40% crystalline lime sulfur
2, concentration: 30-40 times
3. Prevention period: the initial stage of pear bud sprouting (when the bud scale is loose)
4, control objects: a winter tree disease, insect
5, technical requirements: clear ground debris, leaves, tree spray carefully, thoughtful
Second, timely prevention and control of pear rust
1, pesticide: 15% powder rust (also known as triadimefon) wettable powder
2, the use concentration: 1500 times
3, prevention period: generally require secondary control.
A: The first time: when the new leaf grows to a size of about 2.0CM (about April 1st);
B: Second time: 7-10 days after the first prevention. If the weather is fine and does not rain within 7-10 days after the first prevention, the second time may not be controlled, otherwise a second prevention must be carried out.
4. Technical requirements:
A: Take the season, the sunny day, and grasp the first prevention and treatment in time.
B: Spray the medicine carefully for the new leaves (especially the back of the leaf); if it rains within a day and night after spraying, it should be immediately repaired.
Third, actively prevent and control pear hibiscus
1. Pesticides: 10% pyroline (also known as one pass) wettable powder, etc.
2, the use concentration: 3000 times
3, prevention period: general annual prevention and control 3-4 times.
A: First time: It is carried out around mid-March in the early stage of inflorescence separation. Focus on the prevention and control of the overwintering adults and the spawning, in order to significantly reduce the number of insect populations.
B: The second time: in the first generation nymphal period (around mid-April).
C: The third time: in the second generation nymphal period (about the end of May), more after the end of the pouch storage bag.
D: Fourth time: In the third generation nymph period, around the end of June.
4. Technical requirements:
A: The psyllids occur in 3-5 generations in general. In recent years, there has been a tendency to increase the damage, especially in the rainwater juvenile. The key issue is that the control season is not well mastered. According to the production practice, the prevention and control of pear scorpion should focus on the first and second prevention and control, especially in the pear orchard where the worm is seriously damaged in previous years.
B: Be careful and thoughtful when spraying.
C: Cuiguan Pear To prevent or aggravate rust spots, it is strictly forbidden to use emulsion pesticides before bagging.
Fourth, earnestly grasp the prevention and control of pear black spot disease
1. Pesticides: 15% myclobutanil, 47% Yefu wettable powder, 47% Xianle wettable powder or 12.5% ​​teprazole ((isoxazol) wettable powder
2, the use concentration: 3000 times
3. Prevention period: 3-5 times in general.
A: The first time: when thanking 90%
B: Before the second bagging (mid-May)
C: Third time: before the second expansion of the fruit (mid-June)
D: Fourth time: after harvesting early pears (in mid-August)
E: Fifth time: around mid-September
4: Technical requirements:
A: Pear scab can not only infect leaves and young shoots, but also cause epidemics due to lack of timely, incomplete or rainy years, which leads to a decline in tree population, outbreaks of ring rot, and fruit commodities. Sexual reduction or even non-commodity is the most threatening productive disease.
B: In the past years, the disease was serious, or there were many rains in the past. It was necessary to pay great attention to it and prevent it in time, even after rain and defense.
Source: Ningbo Agricultural Economic Net
A comprehensive prevention pear buds sprout period
1, pesticides: 40% crystalline lime sulfur
2, concentration: 30-40 times
3. Prevention period: the initial stage of pear bud sprouting (when the bud scale is loose)
4, control objects: a winter tree disease, insect
5, technical requirements: clear ground debris, leaves, tree spray carefully, thoughtful
Second, timely prevention and control of pear rust
1, pesticide: 15% powder rust (also known as triadimefon) wettable powder
2, the use concentration: 1500 times
3, prevention period: generally require secondary control.
A: The first time: when the new leaf grows to a size of about 2.0CM (about April 1st);
B: Second time: 7-10 days after the first prevention. If the weather is fine and does not rain within 7-10 days after the first prevention, the second time may not be controlled, otherwise a second prevention must be carried out.
4. Technical requirements:
A: Take the season, the sunny day, and grasp the first prevention and treatment in time.
B: Spray the medicine carefully for the new leaves (especially the back of the leaf); if it rains within a day and night after spraying, it should be immediately repaired.
Third, actively prevent and control pear hibiscus
1. Pesticides: 10% pyroline (also known as one pass) wettable powder, etc.
2, the use concentration: 3000 times
3, prevention period: general annual prevention and control 3-4 times.
A: First time: It is carried out around mid-March in the early stage of inflorescence separation. Focus on the prevention and control of the overwintering adults and the spawning, in order to significantly reduce the number of insect populations.
B: The second time: in the first generation nymphal period (around mid-April).
C: The third time: in the second generation nymphal period (about the end of May), more after the end of the pouch storage bag.
D: Fourth time: In the third generation nymph period, around the end of June.
4. Technical requirements:
A: The psyllids occur in 3-5 generations in general. In recent years, there has been a tendency to increase the damage, especially in the rainwater juvenile. The key issue is that the control season is not well mastered. According to the production practice, the prevention and control of pear scorpion should focus on the first and second prevention and control, especially in the pear orchard where the worm is seriously damaged in previous years.
B: Be careful and thoughtful when spraying.
C: Cuiguan Pear To prevent or aggravate rust spots, it is strictly forbidden to use emulsion pesticides before bagging.
Fourth, earnestly grasp the prevention and control of pear black spot disease
1. Pesticides: 15% myclobutanil, 47% Yefu wettable powder, 47% Xianle wettable powder or 12.5% ​​teprazole ((isoxazol) wettable powder
2, the use concentration: 3000 times
3. Prevention period: 3-5 times in general.
A: The first time: when thanking 90%
B: Before the second bagging (mid-May)
C: Third time: before the second expansion of the fruit (mid-June)
D: Fourth time: after harvesting early pears (in mid-August)
E: Fifth time: around mid-September
4: Technical requirements:
A: Pear scab can not only infect leaves and young shoots, but also cause epidemics due to lack of timely, incomplete or rainy years, which leads to a decline in tree population, outbreaks of ring rot, and fruit commodities. Sexual reduction or even non-commodity is the most threatening productive disease.
B: In the past years, the disease was serious, or there were many rains in the past. It was necessary to pay great attention to it and prevent it in time, even after rain and defense.
Source: Ningbo Agricultural Economic Net
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