Citrus scab is one of the major diseases of broad-skinned oranges. Mainly harmful to new shoots, young leaves, flower buds, petals, young fruit and other parts, when serious damage, causing defoliation and falling flowers, falling fruit, the surface of the damaged fruit is rough, less acid, less juice, lower quality, affecting the yield and fruit value of the fruit. According to the station recently observed in the phenological period of the orchard such as the forest farm in the west town of Guanglin and the county: At present, Wenzhou dense orange, citrus and so on have begun to sprout spring buds. Look around the fruit farmers to pay attention to strengthen the observation of the orchard, focusing on the first spray control, and do a good job in timely spraying. For the first time, when the spring buds are sprayed for one grain of rice, the second flower is 2/3, and the third fruit is large.
Control method:
1. For the first application, 0.8% equivalent Bordeaux mixture can be used. 0.6 kg of salt is added to the prepared Bordeaux solution, which has synergistic effect and rain-resistant scouring effect. At the same time, it has special effects on the treatment of citrus white plaster. .
2, 10% Shigao water dispersible granules with water 1500-2000 times liquid spray. The drug has the characteristics of broad sterilization, strong curative effect and long-lasting effect.
3, 80% Dasheng M-45 wettable powder with water 500-800 times liquid spray, it can form a dense film resistant to water wash, spray before rain, no need to re-spray after rain, on anthracnose, resin disease, coal smoke disease Pests such as rust tick have good concurrent effects and can be used continuously.
In other places, it is necessary to strengthen the observation and investigation of orchards. According to this site, some plants in individual orchards are highly infected with red spiders in winter, and attention should be paid to the combination of red spiders.
A self-contained, portable liquid chemical supply tank storage and transfer unit includes an external support shell having upper and lower support shell sections concentrically joined to one another. The upper support shell section includes diametrically opposed upright arms which define therebetween a generally U-shaped space in which the transfer system is positioned. The lower support shell section houses a liquid chemical storage tank. The transfer system includes a metering canister fluid-connected to the liquid chemical within the storage tank, a selector valve assembly and a pump (preferably a manually-actuated hand pump). Operation of the pump will allow liquid chemical to be drawn from the storage tank and into the canister. The liquid chemical in the metering canister may then be transferred (e.g., via gravity or another pump) to another tank, for example, a mixing tank associated with an agricultural spray implement.
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