Recently, some fruit growers have reported that the type of peach trees that have been deflated has been very serious. China Extract Powder For Use As Dietary Supplement Extract Powder, Extract Powder Manufacturer Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.bodybuildingoil.com
Peach tree gum disease is a common disease in peach production. Occurrence area is relatively common. Generally, when the heavy rain drops from April to October, during the rainy season or after prolonged drought, the soil ridge is thin, the fertilizer and water are insufficient, the load is large and the tree age is relatively high. Longer peach trees are more serious.
This disease is divided into two kinds of infective fluid and non-invasive fluidosis. Invasive fluidosis, also known as ecdysis, neoplasia, mainly harms the branches and can also harm the fruit. Branch flow glue is divided into dermal pore fluid and wound fluid. Pikong flow plastic, first in the infected stems to produce a pimple-centered verrucous uplift freckle, and then gradually expanded to freckle rupture, spilled colorless translucent thin sticky soft gum, soon became dark brown, texture Hardened and crystallized. Wound flow of glue is mainly fruit, branches appear wormholes, cracks, mechanical wounds, etc., in the edge of the wound flow plastic, resulting in hardening of the fruit surface, cracking, weakening tree vigor, severe death.
Non-invasive fluids, also known as physiological fluids, are mainly harmful to the trunk and main branches, and small branches and fruits can also be harmed. In the early stages of injury, the main branch suffered a slight swelling of the diseased part. When the sap began to flow in the early spring, translucent yellow gum came out of the disease. It was particularly severe after the rain. The diseased part was easily infested by saprophytic bacteria, and the cortex and xylem became brown and rot. The tree vigor is weakened, and the leaves are yellow and small, and the branches or whole plants die when they are severe. Fruit disease, endocrine yellow gelatinous core, overflowing fruit surface, the disease hardened, cracked, development blocked, unbearable.
In addition to governance methods:
1. Before the peach sprouts, apply the lesion with 21% peroxy acetic acid aqueous solution 5-10 times or 80% ethyl allicin EC 1000 times.
2. Before and after flowering, 50% bromochloroisocyanuric acid wettable powder 750 times, or 21% peracetic acid water 500 times, 70% thiophanate-methyl wettable powder 1000 times, 50% different Bacterial urea suspension 1000 times to control.