Citrus flower buds do not take long, but the damage caused by the damage cannot be underestimated. In recent years, orange groves in some places have caused large losses due to serious damage to flower buds, and some even empty trees or empty gardens. According to the experience and lessons, remind the orange farmers to control the citrus flower buds to get out of the following misunderstandings.
Do not pay attention to the prevention and control of the flower buds of the New Year. Some orange farmers think that citrus results in large annual flowering, good tree potential, high fruiting rate, flower buds harm does not matter, and even think that it can play a role in flower thinning, in fact, this is not right. According to the survey, the buds of flower buds are generally buds with early buds and good flower quality. These flower buds should be one of the main objects of "flower protection". Flower buds occur differently under different climatic and soil conditions. If they suddenly rain during the emergence period or the orange grove with moist soil, flower buds often occur. In 2005, it was a citrus year, and it was cold and rainy in winter and spring. Orange farmers should not neglect the prevention and control of flower buds.
Do not pay attention to ground application or application too late. Some orange farmers thought that the application of the buds would solve the problem, thus eliminating the application of the ground. As a result, the amount of adult worms was large, and the effect of applying buds was not good. Or because of the time when the flower buds are not applied (often too late), they suffer serious losses. Production practice shows that ground application is an effective method to control citrus flower buds. The application of ground application and flower bud application should be combined with ground application, supplemented by bud application. When the buds of the buds are emerged from the emergence of the buds and the buds are white and the buds are fresh and emerged (depending on the rain), it should be sooner rather than later. If the adult has been planted on the tree to lay eggs, it will often lose control effect. Adult trees should be sprayed on the ground of the entire park. Sporadic and juvenile trees are sprayed only about 67 cm outside the canopy. Generally, spraying powder pesticides with contact action, such as using 25% carbaryl powder 1.5 kg or 2.5% trichlorfon powder 1.5 kg mixed fine soil 30-35 kg spray, can also kill 2.5% enemy kill 2000~2500 The liquid is sprayed on the ground every 5 to 7 days, and usually sprayed 1 or 2 times.
The flower bud turns green before applying the medicine. Some orange farmers apply only when the citrus buds are like lanterns, green petals or green dots. It is too late. The canopy spray should be grasped when most of the flower buds become white, 2 to 3 cm in diameter, and the adults have been unearthed on the trees without laying eggs. Spray with 2.5% enemy killing or 20% speed killing 3000-4000 times liquid, or 80% dichlorvos 1000 times liquid, once every 3 to 5 days, for 2 to 3 times.
Author: Long Vanves
Source: Hunan Science and Technology News
Do not pay attention to the prevention and control of the flower buds of the New Year. Some orange farmers think that citrus results in large annual flowering, good tree potential, high fruiting rate, flower buds harm does not matter, and even think that it can play a role in flower thinning, in fact, this is not right. According to the survey, the buds of flower buds are generally buds with early buds and good flower quality. These flower buds should be one of the main objects of "flower protection". Flower buds occur differently under different climatic and soil conditions. If they suddenly rain during the emergence period or the orange grove with moist soil, flower buds often occur. In 2005, it was a citrus year, and it was cold and rainy in winter and spring. Orange farmers should not neglect the prevention and control of flower buds.
Do not pay attention to ground application or application too late. Some orange farmers thought that the application of the buds would solve the problem, thus eliminating the application of the ground. As a result, the amount of adult worms was large, and the effect of applying buds was not good. Or because of the time when the flower buds are not applied (often too late), they suffer serious losses. Production practice shows that ground application is an effective method to control citrus flower buds. The application of ground application and flower bud application should be combined with ground application, supplemented by bud application. When the buds of the buds are emerged from the emergence of the buds and the buds are white and the buds are fresh and emerged (depending on the rain), it should be sooner rather than later. If the adult has been planted on the tree to lay eggs, it will often lose control effect. Adult trees should be sprayed on the ground of the entire park. Sporadic and juvenile trees are sprayed only about 67 cm outside the canopy. Generally, spraying powder pesticides with contact action, such as using 25% carbaryl powder 1.5 kg or 2.5% trichlorfon powder 1.5 kg mixed fine soil 30-35 kg spray, can also kill 2.5% enemy kill 2000~2500 The liquid is sprayed on the ground every 5 to 7 days, and usually sprayed 1 or 2 times.
The flower bud turns green before applying the medicine. Some orange farmers apply only when the citrus buds are like lanterns, green petals or green dots. It is too late. The canopy spray should be grasped when most of the flower buds become white, 2 to 3 cm in diameter, and the adults have been unearthed on the trees without laying eggs. Spray with 2.5% enemy killing or 20% speed killing 3000-4000 times liquid, or 80% dichlorvos 1000 times liquid, once every 3 to 5 days, for 2 to 3 times.
Author: Long Vanves
Source: Hunan Science and Technology News
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