How to treat the disease of watermelon leaves
Watermelon is a necessary fruit to relieve summer heat in summer. it can be said that summer without watermelon is incomplete. Watermelons are grown all over the country. So how to treat watermelon leaf disease?
1. Fusarium wilt
Chemical control should give priority to prevention, and the control effect of heavy stubble agent of watermelon and 40% Guakuning is better. The specific method is as follows: after watermelon planting, combined with watering root water, 50 grams of watermelon stubble agent to water 30-40 kg, 0.2 kg per plant or take off the sprayer head, spray on the stem, leaf and stem base of the plant. When the bottom leaves of the diseased plant wilted, the root was irrigated with 40% Guakuning 50 grams of water 30-40 kg, 0.5 kg per plant. Before root irrigation, pick a small bowl-shaped hole at the base of the stem of the diseased plant, and then pour the solution into it. In order to facilitate the resurrection of the diseased plant, do not seal the soil temporarily, let the sun shine on the base, and seal the soil again after complete recovery, and then irrigate again in the next 7-10 days.
Anthrax
Select disease-resistant varieties, do a good job of seed disinfection, and rotate with non-melon crops for more than 3 years. Proper close planting, timely pruning, ventilation and transparent light. Properly increase the application of phosphorus and potash fertilizer, pay attention to drainage and waterlogging after rain, remove diseased leaves in time, and cover the fruit with grass. According to the perennial onset period of spraying 3-5 days in advance, 50% carbendazim wettable powder and 70% methyl topiramate powder can be sprayed 1000-1500 times, once every 7-10 days, 3-4 times in a row.
III. Viral disease
To control aphids in time in the field, you can choose 1000 times of omethoate or 2000 times of 20% chrysanthemum EC or 2000 times of imidacloprid. The initial stage of the disease began to spray 20% virus A wettable powder 500 times or 1.5% Zhishanling 800 times, prevention and treatment every 10 days or so, 2-3 times in a row. If multi-element fertilizers such as Duode and Lvyuan 999 are added during spraying, the control effect will be better.
The disease of watermelon should be prevented and treated according to the actual situation and the right medicine can be treated effectively.
- Prev
Is the camellia evergreen or deciduous?
Camellia is widely cultivated in all parts of our country, with a wide variety of flowers, most of which are red or light red, white and mostly double. Has a higher ornamental value, often planted in the balcony of the family, in front of the window, showing full of spring. So is camellia deciduous or regular?
- Next
How to plant aloe vera?
Aloe is a kind of ornamental plant with thick leaves. Aloe is divided into edible aloe and medicinal aloe, so how to plant aloe? What are the precautions? 1. Growth habits of Aloe Vera Aloe vera is a plant of the Aloe family and Aloe vera, which is suitable for the growth environment.
Related
- A course of planting techniques and methods on how to grow carrots
- How to plant the latest tulips?
- Is it better to pick tea in the morning or in the afternoon? When is the best time for tea to be picked? what is the third or fifth tea?
- Launch Yuanxiao Happy combination Haocha + Tea Yuan healthy Taste
- Penghu Tourism "Fireworks 20 Parade with You"
- 2022 West Lake Happiness holds "Digital Revitalization Voucher" and draws iphone13 and laptop.
- Banqiao Fuzhou social houses are designed to change start-up combined with police elimination to create a safe and livable environment
- The convenient measure of "mechanical weeding" in Xinbei has been abused and the Agriculture Bureau has imposed heavy penalties on the illegal land consolidation.
- Changgeng University Joins Hands with Four Memory Factories to Rescue Memory Talent Shortage
- The list of Taiwan's top 100 MVP managers is listed by the Director-General of the Farmers' Association of Sanxia District.