Sunflower can be cutted with branches, with a high survival rate. After cuttage, the plants have strong resistance to disease, strong growth, and seldom infect diseases. As long as we pay attention to the daily maintenance, we don't need to worry about the impact of the disease.
1. Aphid: once infected with aphid, aphid will gather together in a large number, sucking the juice in the plant, causing the plant to lack of water and dry up, seriously affecting the growth. For aphids, the focus is on control. Before germination, spray with imidacloprid 4000-5000 times. After germination, spray with cypermethrin 2000-3000 times. If it is difficult to eradicate at one time, spray several times continuously.
2. Almond bee: this pest mainly damages the leaves, causing the damaged leaves to dry and fall off. Do a good job of positive preventive measures, after fruit setting, spray with 1500 times of aphid exterminator.
3. Scleroderma Armeniaca: both nymphs and adults will cause damage, gather on the branches to suck juice, resulting in weak growth, slow growth of plants, and even death of plants. Spray once before germination and in late May respectively. Use 50-80 times of cloth oil emulsion to mix with 1500 times of lesbon.
