This spring, dozens of plum varieties were planted on the edge of the peony garden, and now some of the new hairy branches with good growth can reach 2-3 meters, but the new tender tips just before and after the autumn have repeatedly suffered from the harm of borer drill hearts. This reminds me that corn in the early season is free of borer hazards, and corn on the cob that is not medicated in the late season will be spared. Now borers also harm the fruits and vegetables in the vegetable garden, such as cowpeas, peppers, tomatoes, pumpkins and so on.
In the past, when engaging in the breeding of rice varieties, water agent "insecticidal double" could be used to control borers, which is a low-toxicity and high-efficiency pesticide. The effect of grasping the borer incubation period is particularly good, and the rice field planting is specially reported by the agricultural technology department in advance to predict the borer hatching algebra in what period it is best to prevent the application, like planting vegetables in their own small courtyards.
Borers are harmful to new shoots or seedlings of orchids, and I wrote an essay many years ago documenting the symptoms of harm. In recent times, when there has been borer infestation in the vegetable garden outside and the plum blossoms in the garden, the new seedlings of orchids have also produced drill core hazards. Pulling it out to check it out found that there are many insect fecal accumulations, so I said that the core of the new orchid seedling is not only caused by water injuries or infection diseases, but also borers are harming.
Sometimes dissecting the decaying base of the core seedling will find that there are white insect bodies like fruit fly larvae squirming, and when extracting the decaying leaf core, only the accumulation of insect feces can be seen, but the maggot-like insect body is missing. This is the same as the new branches of the plum blossom, which shows that the new leaves have withered, the insect feces have accumulated, and they have been eaten into hollow tube-like skins, however, the insects have feathered into moths and flew away. Therefore, when gray borer moths are found in the orchid chamber, it means that there is a borer infestation.
Inulin pesticide is effective for bare adult worms, but it does not play any role in the eggs of borers and worms that invade the inside of the plant, because it does not have the function of fumigation and gastric poisoning, so I am asking Zhu Qiuchao which drugs other than organophosphorus can be applied to borer control on orchids? Like the water agent "insecticidal double" used in the early rice field, it is a very good drug against borers, low toxicity and high efficiency for human and animal safety.
Sometimes it feels like a bug in Miri, difficult to prevent, and disgusting. The core twitching symptoms caused by borer harm are fundamentally different from fusarium rot, the former will not be transmitted to adjacent plants, but it is difficult to say if it is cross-infected with Fusarium in the later stage. This is why the rotting strain is infected with a variety of bacteria through high-power microscopy, because the larvae of fruit flies, spiny jumpers, and sharp-eyed mushrooms are like tiny ground maggots and like to eat saprophytes, so they can often be found when dissecting rotten lesions.
In fact, the passage of borer invasion and maggot invasion is not the same, the borer is the most tender tissue of the orchid bud or the new seedling after the hatching of the insect egg, the bud core or the new seedling leaf core, the damage to a certain extent when the bud core and the new seedling leaf core quickly blacken or brown wither. The larvae of Fruit flies, Spinosa, and Pinnacle-eyed Mushrooms, like maggots, invade through new roots, causing root rot and even cross-infection with Fusarium. Therefore, root rot is the most serious source of disease covered by cultivation media. Of course, there is also the cultivation medium powder acidification to breed anaerobic bacteria.
In the face of rotten buds and new seedlings, the best way to be effective is to find one to deal with one, take off the pot to clean the plants and preserve the seeds, do not wait, and do not be afraid of trouble.
After the heat will face a change of season, the water temperature on goldfish farming will fall back to below 30 ° C, which is the active period of microbial reproduction, and special emphasis should be placed on the prevention of diseases and insect pests, which is not the same as orchid cultivation. It is about to usher in early autumn, and the second small peak of orchid growth is about to open, and strict prevention of diseases and insect pests has become a top priority.
Large-scale planting of insect and disease prevention is urgent, scientific and rational alternating drugs, do not let diseases and insects develop drug resistance, to ensure a bumper harvest after autumn.
ps: The healing of the last disease is really smart. Where pests and diseases occur, it is unqualified management, where there is negligence, when the medication is not right, it is not right, it is not scientific and reasonable, which will lead to inevitable results. At the end of this article, Zhu Qiuchao gave the recommended drug, using "mevin indigovirus" to control borers, but the drug has no use data on orchids, it is recommended that Lanyou try it first, and then use it in a large area when it is safe. On August 17, 2021, Wan Yunkun was in Guoxiangju
Description: The picture is the growth of the "snow butterfly" and the flower buds of the spring orchid!
This article is an original copyright work, unauthorized, theft is strictly prohibited, if you need to reprint, please indicate the source.
On August 17, 2021, Wan Yunkun was in Guoxiangju