Kiwis remember frost damage in early spring
Kiwi loves a warm and humid climate, and is most afraid of late frost and cold spring. At this time, if frost damage occurs, the new shoots, flower buds and leaves of the kiwi fruit are often frozen.
Preventive measures: 1. After snowing, according to the weather forecast, if it is not clear in the near future, it may cause the branches and buds to be frozen, and the snow on the tree should be shaken in time; 2. Irrigation in early spring, if the weather forecast is cold or frost, you can Watering in advance to reduce freezing damage; 3. Spraying antifreeze, spraying the whole tree antifreeze before freezing damage can reduce the loss of freezing damage; 4. spray the tree with 0.3% to 0.5% sucrose solution in the afternoon or evening before the freezing damage When the cold current hits in the evening, the water sprayed on the fruit trees emits latent heat when it is frozen, so that the temperature of the tree body does not drop suddenly, which can reduce or prevent the harm of night frost; 5. Smoke method. In the upwind direction of the orchard, a smoke point is set every 15 meters. The raw materials for the smoke can be composed of moist wheat bran, straw, deciduous leaves, and weeds. When the temperature in the early morning drops to about 1-2 ° C, it can be ignited. Fuming, using smoke to dispel cold and heat, can increase the temperature of the orchard and avoid frost damage.
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