How to use anthrax? 1 Both 2,4-D and anti-dropping agents can be used in eggplant vegetables. Studies have shown that 2,4-D is applied with a high fruit setting rate, but it does damage the shoots and shoots of eggplant vegetables. , so it is generally used to decorate or daub flower shank; while the anti-dropping agent is very light to the damage of the young shoots of the vegetables, the amount is appropriate, almost no harm, can be sprayed, save labor, safe and effective, but the fruit set rate is less than 2 4-D lower. Practice has proved that the selection of anthrax should be based on the growth of the plant. For plants that grow too strong or grow too weak, it is recommended to use 2,4-D for flowering. For medium-grown plants, it is recommended to use anti-dropping agents. How do you differentiate the strength of plants? Plants with thick and thin stems, large and thick leaves, dark green leaves, and high water content in the stems and leaves of the plants generally have strong growth; the stems are fine and thick, the leaves are small and thin, and the leaves are yellow-green and stem. The plants with lower water content in the leaves were weaker; the plant stems had uniform upper and lower thicknesses, flat leaves, and green leaves, indicating that the growth was moderate. 2 Talk about practical experience 1. It is not appropriate to spend a lot of flowers as early as the vegetable growers who planted tomatoes spend early in the day, as long as there are flowers on the point, often the first bud flower buds poorly differentiated, even if you live in the late, it is easy to develop into a deformed fruit. Recommendation: Vegetable seedlings should be for the purpose of strong trees, do not leave fruit prematurely. For example, during the cultivation of autumn quinoa tomatoes, the first fruit can be removed to avoid the appearance of deformed fruit in later stages, and it is beneficial to strong seedlings. For cucumber, more than 12 leaves can start to stay in the melon, from the colonization to the production of the best control in the high temperature season 35 to 40 days, late autumn and early spring 40 to 45 days, through late fruits, late flowers, so that more nutrients supply roots And stems and leaves grow, cultivate strong trees. 2. Unsuitable to spend more than more recently, the vegetable grower Wang found that the “yellow spots†on the cucumber leaves were particularly serious (ie, cucumber spot disease), because there is currently no effective treatment for the disease and the spread is very rapid. In the conversation with Wang Shifu, we learned that the price of cucumber has recently been high. In order to have more fruits, the flowers that can be planted on the plants are basically paralyzed. However, they did not expect poor plant growth and reduced resistance to diseases, resulting in rapid “small yellow spotsâ€. spread. Suggestions: How much should be used to judge the growth of plants according to the growth of the plants. If the growth of the plants is weak, the vegetable grower should minimize the amount of picking up the melons and cultivate the stems first. Don't let the nutrients supply the reproductive growth, resulting in poor plant leaf development and multiple diseases. 3 dressing first experiment. The preparation of the anthers is very critical. Some farmers make their own anthers. Due to the replacement of the 2,4-D products from the new manufacturers, if they are still prepared according to the original concentration, the eggplants that emerged will have a lot of stagnation and cause serious losses. Master Wang, who is planting cucumbers, said that the clams he had picked up recently were very serious. He later recalled that he added a new type of foliar fertilizer to the anthers. This type of foliar fertilizer contains hormones and causes melons. Severe fur. Suggestion: Do not randomly add hormone-containing foliar fertilizers in point anthers, and change the concentration of pesticides in different temperature conditions, but first change the area to do a small experiment, only after successful experiments can be large-scale application, to avoid causing huge loss. It takes time to spend. When the first flower is open, 2 to 3 flowers can be used to start flowering. When the flower of the female flower is fully expanded, and the flower is elongated to the bell mouth shape, the flower is most suitable. It is easy to form a stalemate too early and it is easy to cause cracking too late. Be careful. When the flower drops to the tender shoots, young leaves, and growing points, it is prone to phytotoxicity, resulting in atrophy or necrosis at the affected part. Do not point stigma. The liquid directly stimulates the stigma to cause cracking, especially when repeated flowering is severe. Pay attention to soil moisture. If the soil in the shed is too dry, it should be watered before flowering to avoid serious fruit cracking after watering. Combine it with management. The first flower of each inflorescence is prone to malformation, and should be removed before flowering. After fruiting, the fruit growth speeds up, it is necessary to release air in a timely manner to eliminate moisture, strengthen water and fertilizer management, and do a good job of pest control. Grasp the "fast and slow combination" principle. That is, when the female flower is immersed in the anther, the time should not be too long. The female flower should not be rushed to the next when the female flower is taken out of the anther. Instead, the female flower should be played or the female flower should be stuck on the bottle of the anther bottle. The medicine drops on the bottle are "recovered" into the bottle. If you use 1/3 of the medicine in your bottle, do not squeeze or tilt the bottle to complete the decoration. You should refill it with anthrax. Otherwise, due to improper operation, the liquid spilled on other parts of the plant, resulting in phytotoxicity. If the flower is finished, the remaining liquid can be transferred to a small container and used again. In order to avoid repeated flowering, it is best to add a small amount of red pigment to the anthers as a marker to distinguish them by color. At the same time, flukerizine can be added to prevent botrytis and sclerotia. Accurately mastering the time spent on making flowers. Hormone treatment of flowers only 3 days, that is, the day of flowering and two days before the opening, early treatment is easy to form a stalemate, after the treatment of fruit set rate decreased. The best choice is to select the eggplant flowers that turn purple all day. Accurately understand the temperature of the greenhouse during the flowering period. Under high temperature conditions, pods are prone to malformed fruit, and the low temperature treatment tends to produce stale fruit. Generally, the pod blossom temperature should be 15°C～25°C. Reasonably adjust the plant growth. Too weak and overly vigorous plants will affect hormone treatment. Poorly growing plants have a thin, thin pedicel, and hormone treatments are very easy to produce. Plant vegetative overgrowth, inhibition of reproductive growth, will also affect the hormone treatment effect. Therefore, strong seedlings should be selected when planting, suitable seedlings after planting seedlings, control of water and fertilizer and temperature, so that the vegetative and reproductive growth balance. Http://Content/23004706-4212-4b54-a112-5a96135698ec?cType=2 Insect sex Pheromone as a chemical communication tool during the reproductive stage between allogeneous insects. The high complexity and specificity of its chemical structure is an important guarantee for reproductive isolation between insect species. Therefore, sex pheromones between different insects cannot The replacement will not cause confusion, which has great practical value in the regional investigation of insects, plant quarantine, and trap control.
In nature, adult females will release a compound called sex pheromone after sexual maturity. It is released into the air and diffuses with the airflow. It stimulates the chemosensory organs in the male antennae, causing male sexual impulses and lures. The male flies to the release source and mate with the female adult to reproduce offspring. Therefore, insect sex pheromone products are bionic high-tech products, which release artificial sex pheromone through the core.
Insect sex pheromone is a compound that regulates the attraction of male and female insects. It is sensitive and specific. It has a long distance and strong temptation. The use of this product to attract and kill pests does not contact plants and agricultural products, and there is no concern about pesticide residues. It is one of the first methods for controlling pests in modern agricultural ecology.
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Greenhouse vegetables
Greenhouse cultivation of vegetables is often due to lack of light, temperature and humidity do not apply, and can not be normal pollination, the occurrence of falling flowers. Appropriate application of 2,4-D, anti-declining, and other flowers and flowers can increase fruit setting rate, accelerate fruit enlargement and increase yield, but if you do not pay attention to certain details, it is easy to cause adverse effects on the plant, such as malformed fruit, Lead to production cuts and so on.