How to Control Purple Onion Spot

Symptoms: Purple onion spot disease is an important disease of green onions, but also harm onions, garlic and so on. The main damage to the leaves and pedicels, but also damage leaf sheath, lesions at the beginning of water spots like small white spots, a slight depression, after the expansion into an oval or spindle-shaped, brown or dark purple, often around yellow halo. Several lesions healed to grow large strips. When wet, the diseased area produces dark brown or dark gray moldy layers in a concentric ring pattern. When the disease is heavy, leaves, stems die or fold. The high incidence of pedicels in seed plants often causes the seeds to shrink and cannot mature sufficiently, affecting seed yield and quality.

Prevention

(1) Agricultural control. Apply base fertilizer, increase phosphorus and potassium fertilizers, strengthen field management, and increase plant resistance to disease and disease resistance. Implement two-to three-year rotations with non-onion crops. After the harvest, clean the pastoral area and bury or burn the sick body. (2) Seed treatment. Disease-free species, use disease-free neutrons, soak 40% formaldehyde 300 times before sowing for 3 hours, wash with water after soaking or soaking in warm water at 48°C for 20 minutes, and then put it in cold water to cool and sowing. (3) Chemical control. In the early stage of onset, spray 70% mancozeb WP WP 600 times or 3% NR 120 WP 100 times; 75% chlorothalonil wettable powder 500 times can also be used; 70% wetability can also be used. Powder 500 times liquid or 50% acetaminophen WP 1000 times or 64% antiviral 500 times, 5 to 7 days spray 1, even spray 2 or 3 times, the above agents should be used interchangeably.

Our garlic products also include various kind of deydrated Garlic Powder,garlic flakes, fresh and frozen Peeled Garlic,Garlic Braids,etc. besides garlic, we can supply a variety of other local agricultural products,such as carrot, giner,onion,potato,etc.

1. Commodity name: Fresh Carrot

2. Feature: washed, polished, no mechanical damage, bright red color
3. Size: 80-150g; 150-200g; 200-250g; 250-300g
4. Packing:
1) 9kgs/carton, 10kgs/carton, 20kgs/carton with inner plastic bag
2) according to the clients' requirements.
5. Supply Period:
a) Spring season: From March to July
b) Autumn season: From October to December
6. Conveyance: 26-30MT/40' HR (loading quantity depending on packing)

7.Transporting and storing temperature: 0°C

Carrot

Fresh Carrot

Fresh Carrot

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