Control of common diseases and insect pests of zucchini

Farmers often encounter some diseases when planting zucchini, which bring serious losses to growers. So how to prevent and cure these diseases? The editor has found several common ones here to give you a brief introduction.

1. Bemisia Tabaci

Bemisia Tabaci is a disgusting pest with strong contagion and is characterized by a layer of white powdery substance on the body. It mostly occurs on the back of zucchini branches and leaves, especially the new young leaves are more vulnerable. When you get sick, you will find that there are dense light green particles on the top of the leaves, seriously affecting the growth of zucchini. After the onset of the disease, it is best to remove the leaves, and then spray chlorpromazine for prevention and control, focusing on the back of the leaves.

2. Stem rot

Stem rot is a disease that occurs in many vegetables, and zucchini is no exception, which can lead to the direct death of plants. When the disease occurs, the rhizome will slowly rot, it is very easy to find, more because the rhizome has a wound, caused by long-term immersion in water, so drainage must be done well. When the disease can be treated with drugs, Root rot Ling can be used for prevention and treatment, especially after picking melons or weeding, which has achieved the best effect.

3. Cracked melon

Cracked melon is a disease caused by improper planting operation, which is caused by two aspects: one is that the wound on the young melon is caused by the expansion of the wound in the later stage, and the other is the cracking caused by the lack of water or nutrition in the fruit. Prevention and control should be targeted. The former should avoid harming the young melons in the field management after fruiting, and some sharp objects near the young melons should be removed in time. The latter should pay attention to the watering times, avoid long-term immersion in the humid environment of zucchini, supplement more boron elements, and strengthen the bearing capacity of zucchini.

4. Fruit rot

The fruit rot of zucchini is mainly caused by the growth environment that stimulates the bacteria, which leads to the spread of the bacteria. When the disease occurs, it is mostly concentrated in the position of the stem, and the pathogen enters the fruit from then on, and finally spreads, resulting in soft rot of the melon and fruit, and finally complete decay. First of all, it is necessary to avoid zucchini growing in a hot and humid environment, which is the most likely to induce bacteria. After discovering the diseased melon, treat it according to the situation, remove it seriously, and then irrigate chemicals such as mancozeb, such as Evil Frost, and drip irrigation from the root. Similar agents can also be used in the early stage of the disease. Once a week, water it 2-3 times.

The above is the zucchini common pest control, you can refer to the effect, due to geological differences, the required dose will change, we had better consult clearly before buying.