Tattoo Contact Screw:
We also can produce tattoo contact screw as your demand.
Tattoo Contact Screws Tattoo Contact Screws, Tattoo Contact Screw Paddy Irons Tattooo Factory , http://www.paddyironstattoo.com
Tattoo Screws & Washers are easy fit colet screw for insertion and release of tubes on tattoo machines.
Usually we produce M4 thread Tattoo Contact Screws.
Can made of different materials:925 Silver tattoo contact screw,Red Copper M4 tattoo contact screws.
Prevention and Control of Main Diseases and Insect Pests
Purple spot. Seedling stage, plant growth period can be the disease, the main damage to the leaves. In the beginning, it was a water-stained, white dot, and afterwards, it turned pale brown or slightly concave in the shape of a spinning braid. It continued to expand in brown or dark purple, with yellow halos in the surroundings, and then dried or broken. Prevention methods. 1. Rotate with non-onion crops. 2. Use disease-free seeds and disinfect the seeds. Seed treatment can be soaked with 40% formaldehyde 300 times for 3 hours. 3. Chemical control. At the beginning of the disease, use 75% chlorothalonil wettable powder 500-600 times, or 70% mancozeb WP 500 times, or 64% methionine M8 wettable powder 500 times, spray once every 7-10 days. , spray 2-3 times. Downy mildew. Hazardous leaves were grayish at the beginning and dried up later in the day. In severe cases, the leaves of the whole plant turned brown. Control methods: 1. Use disease-free seed and seed treatment. The disease-free plot was selected for seeding. The newly purchased seeds were soaked in warm water at 50°C for 25 minutes, and sown after cooling. 2. Strengthen field management. Select high-lying, well-drained and ventilated plots; apply sufficient fertilizer and increase phosphorus and potassium fertilizers; use reasonable watering methods to avoid over-wetting onions; remove diseased plants in time. 3, chemical control. At the beginning of the onset, use 40% EB aluminum wettable powder 500-600 times, or 25% metalaxyl wettable powder 500-600 times, or 75% chlorothalonil wettable powder 500-600 times, every 7 minutes. - Spray once every 10 days and spray 3-4 times. Onion land fly. The larvae infiltrate bulbs of welsh onion, causing rot, yellow and wilting leaves, and serious deaths. Control methods: 1. Do not use unripe farmyard fertilizers. 2. When necessary, flooding can be flooded to drown some larvae. 3. Control larvae. At the same time as the roots in the soil, 90% dipterex crystals can be used 1000 times, or 50% dimethoate EC 1000 times. Or 50% phoxim EC 800 times solution root. 4. Control adult worms. In adulthood, use 50% phoxim EC 800 times, or 25% EC 2000 times, and spray once every 7 days for 2-3 consecutive times. Dive leaf rope and green onion thrips. Leaf miner larvae traverse through the leaves, causing white long strips at the site of damage, reducing the quality of welsh onions. Onion thrips adults, nymphs sucking mouthparts damage onion leaves, the formation of long-shaped yellow and white markings, severe onion leaves distorted and brown, quality decline. Control method: Use 50% phoxim EC 1000 times, or 50% Malathion EC 1000-1500 times, or 50% Dimethoate 1000 times, spray once every 5-6 days, even spray 2 - 3 times.