Prevention and control of diseases and insect pests of saffron

1. Disease.

The plants of saffron are strong, and there are few diseases and insect pests. But the summer weather is muggy, if the temperature is not cooled in time, lipstick flowers will suffer from anthrax. The main performance is that there are many small spots on the leaves, and then the spots expand into yellowish-brown round spots. During the serious period of the disease, large leaves turn black and dry and die, and sometimes black spots are found on the flower stems.

Prevention and control measures: in the maintenance of saffron, it is necessary to strengthen maintenance, maintain good indoor ventilation, reduce air humidity in hot summer, and apply calcium fertilizer, which can effectively prevent the occurrence of anthracnose. For already sick lipsticks, 50% carbendazim can be sprayed after 500 times dilution.

2. Insect pests.

The main pests of saffron are red spiders, shell insects and so on.

Prevention and control methods: for the prevention and control of red spiders, special acaricides propargite and bromoacarate can be used to spray and kill insects. For the control of scale insects, 1000 times dilution of Wanling can be used to spray.

Common diseases and insect pests of saffron and their control methods

Lipstick anthracnose

Symptoms: in summer, the weather is muggy and saffron is extremely susceptible to anthrax. When the disease occurs, there will be many small spots on the leaves, which will gradually expand to form yellowish-brown spots. When the disease is serious, more than half of the leaves will blacken and die, and sometimes black spots will appear on the stems.

Prevention and treatment methods: strengthen maintenance, maintain good ventilation conditions, reduce air humidity, reduce nitrogen fertilizer, increase calcium fertilizer and other methods, can effectively prevent the occurrence of the disease. In addition, drug prevention and treatment can also be used, and 50% carbendazim 500 times solution or 65% Dysen zinc 500 times solution can also be used to prevent the disease.

Is the newly bought lipstick susceptible to disease?

In fact, lipstick is really not vulnerable to disease, is a soft and strong girl in the hanging orchid family, but why is it so easy to get sick when you buy it home? You didn't pick it right when you bought it. Those with uniform branches, luxuriant branches and leaves, many flowers and dense flowers should be selected. The lipstick sold outside is usually sold by hanging in the air. after buying it home, roll up the drooping branches and leaves and wrap them in a newspaper or bag, otherwise it will cause damage to the drooping branches or flowers and affect the ornamental effect. And there are wounds on the plant, and it is easy to be infected with various diseases and insect pests.

Common diseases and insect pests of saffron and their control methods

When it comes to lipstick, the name is very interesting, because it is similar to lipstick, hence the name, suitable for potted ornamental, loved by many flower friends, like to plant lipstick. However, what common programming hazards will be encountered in the process of planting lipstick, and what are the prevention and control methods?

Anthrax

Symptoms: in summer, the weather is muggy and saffron is extremely susceptible to anthrax. When the disease occurs, there will be many small spots on the leaves, which will gradually expand to form yellowish-brown spots. When the disease is serious, more than half of the leaves will blacken and die, and sometimes black spots will appear on the stems.

Prevention and cure method

Strengthening maintenance, maintaining good ventilation conditions, reducing air humidity, reducing nitrogen fertilizer and increasing the application of calcium fertilizer can effectively prevent the occurrence of this disease. In addition, drug prevention and treatment can also be used, and 50% carbendazim 500 times solution or 65% Dysen zinc 500 times solution can also be used to prevent the disease.

Corynosporum

The spores of the pathogen are numerous on the leaf surface, and can also be produced on the back, but less. Conidiophores mostly solitary, fine, unbranched.

Prevention and cure method

At the beginning of the disease, 50% carbendazim 500 times solution or 65% Dysen zinc 500 times solution can also be used for prevention. In addition, in the process of cultivation, if there is a lack of calcium fertilizer. The terminal bud will be necrotic, so calcium superphosphate should be supplemented in the process of cultivation.

The above is what I have introduced to you about lipstick. For more information, please continue to follow the succulent flower bed. We will provide you with more information.