Symptoms: it is mainly harmful to the stem and root. In the early stage of the disease, the root and stem will appear light brown spots, which will cause the plant to die when it is serious.
Prevention and control: take preventive measures, disinfect the soil in advance, spray aluminum glyphosate on the plant at the early stage of the disease, or irrigate the root and stem of the plant with diflubenzuron.
Symptoms: This is one of the diseases that are easy to occur in greenhouse maintenance, which will cause damage to stems, leaves and flowers, mainly in the position of flowers.
Prevention and control: in the early stage of the disease, it is necessary to remove the infected flowers, and then spray chemicals. Carbendazim and tolbutine can be used. Spray once every 10-15 days, 2-3 times in a row to achieve the effect.
Symptoms: usually, it may also be infected with insects, such as aphids, whitefly, thrips, red spiders, etc. these pests will lie on the plant to suck juice, and will bite the leaves, stems, flowers, etc., which will cause certain impact, resulting in poor plant growth and growth problems.
Control: different methods of pest control are adopted. Natural pyrethroids can be used for aphids, yellow plastic plate can be used for whitefly to trap and kill with heavy oil, and fenitrothion can be used for thrips.
