Symptoms: leaf spot is a common disease of Mirabilis jalapa, which occurs in July or so. It is a fungal disease, mainly endangering the leaves, leading to local lesions and even necrosis.
Prevention and control: in case of leaf spot of Mirabilis jalapa, measures shall be taken in time. First of all, remove the parts where the disease occurs, so as to avoid the continuous expansion of the disease. In the early stage of the disease, spray of chlorothalonil and multi myrrh spray can be sprayed 2-3 times in order to achieve the desired effect. At ordinary times, attention should be paid to cultivation management and timely application of potassium and phosphorus fertilizer, which can enhance the disease resistance.
Symptoms: the insect damage of Mirabilis jalapa is not much, and it occasionally infects aphids and leaf roller. Aphids will be densely distributed, causing damage to young stems, flowers and leaves, sucking the juice inside, and even leading to withering of branches and leaves or even death of the whole plant. The leaf roller mainly damages the leaves and then the whole plant.
Prevention and control: aphids mainly focus on prevention, and pay attention to good drainage at ordinary times to prevent the occurrence of pests. When the disease happens, it is necessary to use the medicine in time, and it can spray 50% of the moth cream.
