Symptom: it mainly damages the leaves of Echinacea. In the early stage of the disease, there will be many green spots on the leaves, and the spots will gradually expand and deepen with the passage of time.
Prevention and control: this disease must be prevented at the early stage. If the time is too long to cause the spread of bacteria, it will be difficult to treat. In general, the control of plant spraying is carried out by using 1500 times of 50% Benazolin wettable powder.
Symptoms: this insect mainly gathers on the back of the leaves and gnaws at the leaves of Echinacea. At the initial stage, the leaves will shrink, gradually shrink, and finally spread to the plants, leading to withering and death.
Prevention and control: when encountering this kind of insect pest, we must deal with it as soon as possible. The most direct way is to spray the whole plant with 1000 g of 75% phorate EC. Generally, spray once every 7-12 days, after 2-3 times, we can basically eliminate this kind of insect pest. Echinacea is easy to grow aphids, so it should be often sprayed with insecticides and placed in the place of ventilation and light.
Symptoms: at first, it will lurk in the root of the plant, and then gradually nibble up from the root to the later stage, which will cause the plant to die due to lack of nutrients.
Prevention and control: the best time to prevent and control this kind of insect pest is when the plant is divided, after digging out the root of the plant, you can check whether there is this kind of insect pest, if found, you can use 200 times of 50% dichlorvos emulsion to spray directly.
