Onion black spot

1. Symptoms Onion black spot disease has risen as the main green onion disease in recent years, mainly damage the leaves and pedicels, and the strains are more susceptible to disease. Yellow and white chlorotic long round spots initially appear on the leaves. After the rapid expansion of up and down, the formation of shuttle-shaped lesions, become dark brown, yellow halo with the edge. The condition continues to expand, with spots and patches remaining in a fusiform shape, and the appearance of a ring-streak on the lesions is clearly structured. In the late stage of disease, dense black fungus layer, conidial stems and conidia, was found on the lesions. The upper part of the diseased leaves was chlorosis and dry or the stems were broken.
2. Prevention (1) Agricultural control. Apply organic base fertilizer, increase application of phosphorus and potassium fertilizers, close planting, remove field sickness, and seriously implement 2~3 year rotation of non-onion crops. Strengthen field management, promptly drain water after heavy rain, promote stable growth of plants, and increase plant disease resistance. (2) Chemical control. 70% chlorothalonil WP 600 times or 50% acetaminophen WP 1000 times; 70% WP 600 times or 14% urea copper 300 times can also be used in the early stage of disease. : 0.5:200 Bordeaux mixture, sprayed every 5 to 7 days, and sprayed 3 to 4 times.

Specifications

Disposable Interventional Accessories

Providing a channel for interventional devices and infusion

Extension tubing

Disposable Interventional Accessories

Features of Product

It is the accessory components of interventional treatment, mainly used for providing a channel for interventional devices and infusion. It consists of a manifold, a high pressure extension tubing and a Y-Hemostasis Valve Set.

l         Manifold: Visible handle makes the flow control easy and accurate

l         High Pressure Extension Tubing: High pressure transparent material ensures the need for large flow

l         Y-Hemostasis Valve Set: It consists of a Y-valve, a guidewire torque device, and a metal guidewire introducer, effectively minimizing blood loss and providing a smooth channel for interventional device delivery. The easy push-pull mechanism allows the manipulator to open and close the valve with just one hand.

*Related Products:manifold kit,angiographic dose control syringes,spinal needle types,endotracheal tube,infusion pump,radiopaque guide wire.

Disposable Interventional Accessories

Disposable Interventional Accessories,Pressure Extension Tube,Radial Artery Tourniquet,Introducer Sheath Kits

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