Notes on raising orchids in July

First, this month, there are two seasons, Lesser Heat (7th or 8th) and Greater Heat (23rd or 24th). The monthly average temperature is above 30 °C. it is the highest month of the year, and more than 2/3 of the weather is a sunny day with scorching sun and scorching heat. Therefore, the main task this month is to strengthen shading, use about 70% of the shading net, and do not close the curtain until the sun does not reach the orchid leaves. Second, due to the extremely hot weather, it is necessary to strengthen ventilation and cooling work. In muggy weather, ventilator fans and mini electric fans can be used to blow with a breeze to promote air circulation. At the same time, water is often sprinkled on the ground to cool down to prevent hot heat from hurting orchids. The ambient humidity can reach 60% to 70% as much as possible. Third, if it is dry and hot with little rain, the basin soil is easy to dry to the end, pay attention to the wet basin soil, water thoroughly, and increase the frequency. If the basin soil is dry, you can use the method of soaking the basin to solve it. However, the basin soil should not be too wet for a long time to avoid causing root rot, stem rot, soft rot and rotten buds. Water management is the focus of this month's work. Fourth, high temperature this month, it is forbidden to apply organic or inorganic fertilizer to roots, and it is better to apply foliar fertilizer for fertilization. 1/1000 urea plus 1/1000 potassium dihydrogen phosphate and biological bacterial fertilizer can be used alternately to supplement nutrients, promote exuberant growth, grow seedlings and strengthen seedlings, and lay the foundation for sprouting and flowering in the coming year. Generally speaking, spray in the evening and wash the leaves the next morning to prevent the accumulation of fertilizer in the leaves caused by the high temperature sun. Fifth, all kinds of diseases and insect pests are most likely to occur this month, so the work of pest killing and sterilization should not be slackened. We should choose a cool evening to apply the medicine. The best drug to control shell insects is chloro fruit. It is best to use triclofenac to kill red spiders and to kill aphids. Do not be too strong to prevent drug damage. Snails and slugs can be caught at night. It is better to spray carbendazim, methyl thiophanate, chlorothalonil and chlorophyllin for sterilization and disease control. Sixth, for the bluegrass that has just been put into the pot, it should be well managed: first, not to fertilize the root system; second, not to bask in the sun; third, not to put it in a high-temperature and airtight place, so as to avoid losses. 7. If there is a typhoon and rainstorm, it is necessary to do a good job in Taiwan prevention to prevent the typhoon from overturning the bowl and breaking the orchid leaves. It is necessary to take rain shelter measures to prevent heavy rain from hitting and causing losses. Taboo: high temperature this month, do not turn the basin, change the soil, split, even if the need for introduction is best to wait until before and after the Autumn Equinox.