Pest and Disease Control Methods for Chinese Cymbidium in February and March

After the orchid plants are divided and repotted, they must slowly adapt to the new environment. During this period, they consume a great deal of nutrients, causing the plants to weaken. In addition, as temperatures rise in March, piercing-sucking pests and harmful microorganisms cause damage that affects the development of new shoots. 1. For pests such as thrips and scale insects, use 5% Baishule water-based formulation at 1000 times dilution or 48.34% butyl carbofuran water-based emulsion at 1500 times dilution, once every 5 to 7 days, for 3 to 4 consecutive applications. 2. When orchid roots have just begun to grow in a new environment, they adapt less easily and root rot readily occurs. Every 10 days, apply 75% Baicidake wettable powder at 500 times dilution as a drench, for 4 consecutive applications. 3. If water-soaked spots are found on the leaves, apply 70% Meiyouren wettable powder at 500 times dilution as a foliar spray, once every 7 to 10 days, for 4 consecutive applications, to suppress the harm caused by pathogens. 4. If rot is found during the bud sprouting period, the plant may already be infected with blight orsoft rotdisease. In this case, use 58% zinc-manganese metalaxyl wettable powder at 400 times dilution or duobaolian streptomycin at 1500 times dilution, once every 7 to 10 days, for 4 consecutive applications, to control it. To achieve the goal of high yields in Chinese cymbidium production, February and March are a very critical period.CultivationManagers must begin with the selection of growing media, the key points of division, water management, light control, fertilizer application, andpest and diseasecontrol. Every detail affects bud sprouting and growth. It is hoped that the above management points can help fellow orchid enthusiasts. (Wang Huaiyin)