Simple hand pump sprayers using the method

Hand pump sprayers during the spraying head is always maintained at the height of 1 meters high on the plant. Because this kind of spray nozzle saves liquid, liquid medicine flows out by hand pump sprayers  in the bottle down time. Therefore, when the motor is not open, the bottle should be below, head of the above. During the spraying, should first start the motor, then change the bottle and head position, so that the bottle at the top, the bottle mouth downward, the bottle body is perpendicular to the ground, the liquid that can flow automatically. During the hand pump pressure sprayers , started by the downwind direction, walking routes and should be spaced a certain distance, namely the spray range. The size of the spray range should be based on the size of the wind speed and flexibility. Speed hours, spraying range should also be smaller, otherwise should be larger, generally 3 to 3.5 meters is appropriate. Each time in the morning, low pressure sprayer  or the best selection of cloudy, avoid sun exposure. Hand pump sprayers is best to use Systemics, fumigant or stomach poison. The dosage of 50 grams per acre general. For the amount of water available, "equivalent method".