Prevention and Control measures of falling Flower and Fruit of Zanthoxylum bungeanum

Zanthoxylum bungeanum is a common condiment in life. It is widely planted in China. It can also be used as traditional Chinese medicine. It has the effects of expelling cold, relieving pain, killing insects, etc. It can also be processed into soap and has a wide range of uses. And a lot of grower appear when planting drop flower drop fruit phenomenon, so prickly ash drop flower drop fruit is what reason causes? How to prevent it? Let's get to know each other.

I. Causes of flower and fruit drop

1. Insufficient nutrition

In summer, stomata will emit a lot of aroma, attract a large number of aphids harm, resulting in reduced leaf photosynthesis, plant malnutrition, flower and fruit drop phenomenon is serious. After fruit setting, fruit growth needs a lot of nutrients, nutrition supply is insufficient, making physiological flower drop serious.

2. Bad environment

Low temperature freezing injury, long-term drought, pest damage, branch growth too dense, insufficient light, too much rain, will affect pollination, insemination quality, resulting in flower and fruit drop.

3. Pest damage

Pests and diseases are also one of the main reasons for pepper flower and fruit drop, which will reduce the fruit setting rate and cause flower and fruit drop.

II. Control methods

1. Promote flowering

Ethephon can be used to control and promote flowering of 4~5-year-old tree crown or vegetative branches, and the shoot growth rate in late autumn can reach more than 95%, and the flowering rate can reach 50% to 90%, while the untreated plants can hardly flower.

2. Drought and flood prevention

Spring and summer temperatures are higher, lack of rain, then timely watering, so as to avoid drought, generally watering once a month, watering after the best soil preservation, summer if heavy rain occurs, to do a good job of drainage waterlogging, so as not to die.

3. Increase fertilizer application

In the fruiting period, water is combined with timely fertilization for three times, one time is young fruit fertilizer, generally 0.1~0.3 kg of nitrogen fertilizer and 0.5~1.0 kg of phosphorus fertilizer are applied to each plant; the second time is fruit expansion fertilizer, which is applied to the root soil through circular holes, generally 15 kg of farm manure, 0.1 kg of zinc fertilizer and 0.5 kg of phosphorus fertilizer are applied to each plant; finally, one month before harvest, the main purpose is to restore tree vigor, and only farm manure is applied, generally, trenching strip application or hole application is adopted.

4. Scientific pruning

It can cultivate good tree shape, irrigate reasonably, improve the ability of plant resistance to bad environment, pay attention to prevent and control leaf rust, longicorn, aphid, gall midge, pepper white scale and other more than 20 kinds of diseases and insect pests at flowering stage, spray medicine at any time.

The above is the pepper flower drop fruit control measures introduced, I hope to help you, want to know more about the relevant knowledge, please pay attention to us.