How many years can golden bergamot be planted to bear fruit?

Golden bergamot is a Yun spice citrus plant, also known as "bergamot citron", "mandarin" and "Fushou orange". It is native to southeastern and southern Asia. At present, it is widely cultivated in tropical and subtropical areas, and about 15 species have been introduced into China. So, how many years can golden bergamot be planted to bear fruit?

First, the results of the golden bergamot over the past few years

Golden bergamot planting for 3 years will bear fruit. Generally speaking, the fruit from March to May is called "spring fruit", accounting for about 35% of the year's fruit. The fruit setting rate of spring fruit is low, the fruit is small, and it is not beautiful. The fruit from June to the middle of August is called "Fu Guo", accounting for 55% of the annual fruit. Protecting summer flowers and protecting Fu fruit is an important link to improve the fruit setting rate. The fruit that blossoms and sits in the middle of August is called "autumn fruit", accounting for 10% of the annual fruit, and the shape of the fruit is poor.

II. Disease and pest control of bergamot

1. Soot disease: small soot spots appear on the leaves after the plant is sick, and then gradually expand into black, covering the whole leaves and hindering photosynthesis.

Prevention and control methods: pay attention to drainage and pruning, make it ventilated and transparent, and control shell insects in time. It can be controlled with 1000 times of 40% dimethoate EC or 1:1:10 tobacco lime water.

2. Charcoal maggot disease: harms leaves, branches, flowers and fruits, resulting in withered leaves, fallen flowers and rotten fruit. Control with 1000-1500 times of 25% carbendazim EC or Fumei of charcoal maggots.

3. Leaf miner, citrus butterfly, jade belt butterfly: larvae are harmful leaves.

Control method: control with 1000 times solution of 90% crystal trichlorfon. Leaf miner moths were controlled with 0.6% mifongling 2000 solution and 20% Kangfuduo (imidacloprid) 2000-4000 times.

4. Scale insects, blowing cotton worms: to harm tender branches and leaves.

Control methods: protect the natural enemy ladybug; cut off the branches at the beginning; control with 1000 times of dimethoate EC or 1000 times of parathion EC; use pine resin mixture, 8-10 times water solution in spring, 16-20 times water solution in summer and autumn, spray and kill every 15 days, 2-3 times in a row. Scale insects were controlled with 2000 times of imidacloprid or 1000 times of rapid culling.

5. Red spiders and aphids: to harm tender branches and leaves.

Control methods: 3000-4000 times solution of pyridaben, 1000-1500 times solution of triazoltin and 2500 times solution of propargite. Timely prevention and control of diseases and insect pests or with other low-toxic and low-residue pesticides. When using medicine, we should pay attention to grasp the concentration to prevent drug damage.

6. Old wood worm and brown spot: dead tree stalk. The main pole of bergamot tree is painted with stone sulfur mixture in early winter every year.