The diseases of hawthorn are mainly flower rot and powdery mildew. The pests mainly include peach borer and red spider mites. 1. Hawthorn rot mainly damages leaves, shoots and young fruit, causing rot in affected parts. The onset of the leaves occurs initially with punctate or streaky lentigines, and then gradually enlarges, turning reddish-brown or brown, and the diseased leaves wither. Control methods: (1) Completely clearing the orchard in the autumn, removing the stale fruit, burning it in a concentrated manner, burying it deeply, and reducing the source of infection. (2) in the early spring. Flush the ground sickness fruit deeper than 15 cm. (3) ground spraying. Before the end of April, lime powder was sprinkled on the surface of the orchard, especially under the canopy. (4) Pharmacy tree control: 50% spraying of leaves and preventing leaf rot when spreading leaves and all leaves. There are 25% triadimefon powder 1000 times, 70% thiophanate-methyl wettable powder 800 times. The flowering period will be sprayed once again to prevent flower rot and fruit rot. 2. Hawthorn powdery mildew mainly damages leaves, shoots and fruits. Leaf disease, the Ministry of cloth white powder, was carpet-like, that is, conidial stems and conidia, new shoots victims, in addition to the appearance of white powder, the growth of thin. The internodes are shortened, the blades are slender, and the curls are twisted. When they die, they die. Control methods: (1) Sweep the orchard, clean the diseased branches, diseased leaves, diseased fruits, and burn them together. (2) Chemical control. Spray 5 degree lime sulfur before germination, increase aerial spores during flower buds, spray 5 degree lime sulfur, spray 1 to 2 times of 0.3% lime sulfur or 25% Triadimefon 1000 to 1500 times as early as flowering. . 3. Peach borer In mid-June, the tree tray sprayed 100-150 times parathion EC to kill the overwintering borer larvae. In early July and mid-August, 1500 times parathion EC was sprayed on the tree to eliminate the fruit borer larvae. . 4. Hawthorn red spider (1) In the early spring, scrape the old skin and cracked skin on the tree, burn it, and eliminate the overwintering adult. (2) Spray pyrethroids 2000 times, 20% trichlormethonol EC 800 times, 73% Kraft EC 2000 times, and better ovicidal 50% Nisoro EC 2000 times, specifically spraying The timing and frequency should be determined according to the amount of occurrence and control effect.
Plant growth regulators are organic compounds that are artificially synthesized (or natural extracted from microorganisms) and have growth and development regulation similar to natural plant hormones. Insen Biotech is specilized in Plant Growth Stimulants with large capacity and competitive price, including 1-naphthylacetic acid, Indole acetic acid(IAA), Indole butyric acid(IBA), Triacontanol, Diethyl aminoethyl hexanoate(Da-6), Brassinolide, 6-benzyladenine(6-BA), Forchlorfenuron(CPPU), Gibberellin acid(GA3).
Plant Growth Regulator,Indol Butyric Acid,Plant Growth Stimulant,Indole Butyric Acid
Hunan Insen Biotech Co., Ltd , https://www.insenhealth.com