Since then, it has been more common to grow young trees from 3 to 4 years old(bulk pots for sale). It has also been found on 1-year-old young seedlings and larger trees. Regardless of the large and small trees, the diseased part is at the top of the young shoots that year, mainly the trunk. Side branches sometimes occur(1 gallon nursery pots bulk). The disease is a fungal disease that mostly occurs from July to August, and also occurs from May to June.
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If conditions permit, the annual seedlings become ill, and the base of the stem becomes stained brown(4 inch pots wholesale). Over time, the diseased branches of the diseased plant will become longer and longer, and the brown dead leaves will increase. In severe cases, enhance disease resistance, the entire leaf will fall off, the crown of the tree will be bare(cheap plastic plant pots bulk), to prevent excessive results of female plants, and even some tender branches will dry up and die.
(plastic 4.5 inch nursery pots suppliers in china)Under the same conditions, large trees are more resistant to disease than large trees(bulk plastic pots for plants); large trees of the same age, female trees consume more nutrients due to a large number of results, the disease resistance declines, and the incidence is often higher than that of male trees(square grow pots). Spray once every 15 days to 20 days, and spray 1: 2: 200 Bordeaux fluid for later protection. Timely control underground pests such as maggots and maggots.
First of all(bulk fabric pots), we must strengthen the management of fertilizers and water in order to prevent intercropping with pine trees and metasequoia trees, and to timely control underground pests. Chemical control should be sprayed on the canopy with 500% solution of 40% carbendazim suspending agent at the beginning of the disease(propagation tray). From August to September, infertile soil and poor ventilation; 70% mancozeb wettable powder can be sprayed 600 to 800 times.
From mid-July to late August, the color of the leaves in the middle of the branches gradually turned brown(heavy duty plastic planters), gray, and withered, and then gradually spread a large number of leaves. The main causes of the disease are excessive soil moisture or insufficient water, leading to poor root system growth(gallon plant pot); underground pests or human factors cause damage to the root system; excessive seedling density and poor ventilation and light.(plastic 4.5 inch nursery pots suppliers in china)
It has been observed that since June(plastic plant pots outdoor), the susceptibility index has increased month by month and increased in August, after which the susceptibility index will gradually decrease. As the temperature decreases and the end of the plant growth period, the susceptibility to diseased plants gradually stops(plug trays). Using some organic fertilizers as the base fertilizer can promote the growth of seedlings, and inhibit the growth and spread of germs.
(plastic 4.5 inch nursery pots suppliers in china)Intercropping with other disease-resistant plants and ginkgo seedlings is also a control approach(black plant pots plastic). Weed the soil in time, drain and irrigate. Care should be taken to protect the seedlings from damage, and to prevent littering when planting. If the soil is deficient in trace elements such as zinc and boron(cell trays), the base of the diseased plant can be poured or a small ditch can be irrigated with a mixture of multi-effect zinc or trace elements.
The disease appears on the leaves, and the leaves lose their normal green color and sag slightly(propagation trays wholesale). For trees in which ginkgo leaf blight has occurred, the diseased body should be cleaned up after the onset of disease and after early winter leaves. When the disease occurs, gray-brown spots appear only at the leaf edges, and then connect the leaves, and gradually develop from the outside to the inside(gallon nursery pots), until the entire leaves become brown and die.