The season enters the middle of summer, many orchid friends communicate with me to discuss, orchid growth as if suddenly there is a problem in the heart is very confused. In fact, there have long been signs that everyone is too busy to pay attention to the details. People know that the spores of microbial bacteria are spread with wind and rain and air, which can be said to be everywhere, except for sterile cultivation rooms, the rest are no clean area. Among them, there are many harmful bacteria spores, and there must be no dead angle invasion. The so-called killing of the cultivation medium is only a temporary effect, and it is still necessary to face the erosion of harmful bacteria in the process of use, and knowing these will make you more aware of the importance and significance of cultivating high-resistance orchid plants.
To improve the resistance of orchid plants, the use of good permeability of the cultivation medium, in the state of rich oxygen molecules root growth will inevitably be strong, such as, oxygen-loving beneficial bacteria active to achieve inhibition of harmful bacteria invasion and breeding, this is benign management. This is only for harmful true bacteria, and the spread of viruses is to cross-infection caused by vectors such as insect bites, or unpasteurized pruning tools. Viruses don't fill the air like fungal spores, so as long as you control the source of the virus, you can sit back and relax.
Orchid cultivation, the most difficult to prevent and control is the fungus spores that can be transmitted with wind and rain and air, the only way is to create an environment where harmful bacteria are not suitable for growth, such as increasing the application of beneficial bacteria to inhibit the breeding of harmful bacteria, as well as preventive drugs. Do everything in front of you don't wait until the disease occurs before rushing to attack the heart, and the act of hindsight cannot prevent the loss from occurring.
Insect pests are easier to detect than disease invasions, and we insist on regular prevention to prevent them before they occur. When there are traces of snails or slugs, thrips, red spiders, spiny jumpers, sharp-eyed mushrooms, and fruit flies, special care should be taken, indicating that the activity of insects is not only a few that the eyes can see, most of them are hidden in a place that is not easy to detect and endanger orchid plants. For example, in addition to thrips and red spiders, the rest of the insects can harm the root system in the cultivation medium, such as spiny jumpers, sharp-eyed mushrooms, fruit fly larvae maggots and nematodes.
Nowadays, many orchid gardens use sticky fly paper to eliminate spiny jumpers, sharp-eyed mushrooms, and adult fruit flies, which is a palliative but not a cure. These types of adult insects are weak in harm, generally only excreted feces to pollute the leaves, induce smoke mold disease to affect the appearance, the real harm is that the nymphs nibble on the root system in the cultivation medium, causing the wound to make the disease from the mouth.
To eliminate insect hazards, we must prevent it in the front, and do not wait until it is too late to see insects before taking medicine. The smaller the insect, the more difficult it is to control, first of all, it is not easy to detect, secondly, the insect body is small and easy to hide, and the medicinal liquid is not easy to splash on their bodies. The use of highly toxic organophosphorus pesticides that can be smoked is not too ideal, the dosage is not easy to produce drug harm, and it will cause certain harm to people, in view of this, you can choose low-toxicity and high-efficiency pesticides.
For natural or semi-natural cultivation environment to implement regular spray prevention, can seize the insect incubation period of the best drug, there is no way to grasp the beginning of the drug before the arrival of the growing season, the frequency and cycle of use is subject to the summary of practice. In short, don't give the bugs an opportunity to take advantage of it. For seasonal insect pests, targeted medications such as mites, whiteflies, leafhoppers, grasshoppers, locusts and mesenchymals can be used in advance. I heard Lan You tell that when the orchids bloom in the summer, there are not only thrips and red spiders that are planted in the open air, but also aphids.
Outdoor open cultivation will be more affected by pests and diseases, and it is not easy to control. Like the orchid placed in the courtyard, it is for the purpose of cultivating sentiment and self-cultivation, accompanied by melons, fruits and vegetables and other flowers, while children are often in contact, in order to consider the safety of toxic chemical agents are not used, biological agents will be the first choice. The use of tea seed powder for invertebrates is a special effect, and it is also a good idea to water beneficial bacteria for bacterial pests to inhibit the growth of harmful bacteria, such as Yilan and Bacillus subtilis.
Low-toxicity and high-efficiency pesticides and biologics will be the main projects of agricultural science and technology in the future, and orchids will also benefit. Of course, the birth of new types of things also requires people to keep pace with the times and receive new knowledge at the first time, otherwise they don't know what applications to talk about. With the development of the times and the convenience brought by science and technology, the future of orchid pest control will inevitably produce earth-shaking changes. On July 30, 2021, Wan Yunkun was in Guoxiangju
Description: The picture is a new lotus petal of Chunlan!
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On July 30, 2021, Wan Yunkun was in Guoxiangju