Alternanthera philoxeroides used in wasteland, uncultivated land, orchard and other places. Spray 20ml of 20% Talon EC with a sprayer. Use 40-70 ml of 20% chlorhexidine EC per mu, add 30 liters of water and spray it evenly on the leaves. Water peanuts on lawns, paddy fields, cornfields and ridges, and spray 20 ml of 20% chlorotoluron EC with a sprayer. 1% glyphosate aqueous solution 1000-2000 ml was sprayed with 20-30 liters of water in the vigorous growth period of water peanuts, and the control effect was very good.
Herbicide "Shuihua Shijing" is a kind of herbicide which can control annual broad-leaved weeds. Its application scope is winter wheat field, non-cultivated land, sorghum field and summer corn field. Its application method is stem and leaf spraying. When using herbicides, a part of clear water can be injected into the sprayer first, and then an appropriate amount of liquid medicine can be added according to the instructions. After fully stirring, it can be sprayed. Precautions: after taking the medicine, the sprayer should be cleaned repeatedly, and it is forbidden to dump the washing water at will to avoid polluting the environment.
Matters needing attention in the use of herbicides for peanut root rot
1. The control effect of floxuridine on Alternanthera philoxeroides in furrows and ridges in rice fields can reach over 95%. Use 50-60ml of 20% chlorhexidine EC per mu and spray 50-60kg of water evenly. It can be used to prevent Alternanthera philoxeroides from germination to vigorous growth, and it is forbidden to spray the liquid medicine on broad-leaved crops such as soybeans and peanuts to prevent phytotoxicity.
2. The effect of preventing and controlling Alternanthera philoxeroides Fusarium wilt is remarkable in riverbanks and ditches. At the early stage of Alternanthera philoxeroides occurrence, 10.5% dry Alternanthera philoxeroides 16 g (1 bag) and 10 kg of clean water were sprayed to control Alternanthera philoxeroides, and the area was 200 square meters. After the application, the water peanuts turned yellow quickly, and the stems and leaves died and the roots died a week later. Generally, continuous use for 2 years can eliminate the harm of water peanuts.
3. Paddy-upland rotation can inhibit the growth and spread of Alternanthera philoxeroides. Herbicide special for Alternanthera philoxeroides (aqueous solution) and herbicide special for Alternanthera philoxeroides (powder) are sprayed with water at the initial stage of Alternanthera philoxeroides occurrence, and then the roots of Alternanthera philoxeroides are killed by the herbicide when the parts turn yellow and green again. Alternanthera philoxeroides can be eradicated by continuous management for 2-3 years. In the place where Alternanthera philoxeroides occurred seriously, the herbicide Roundup was used for control. Directional spraying should be chosen in sunny days to avoid drug damage caused by liquid floating on crops.