Pitaya root mite killing composition and pitaya root mite control method

Abstract

The invention discloses a pitaya root mite killing composition. The pitaya root mite killing composition is prepared from the following components: abamectin, spirodiclofen and a plant essential oil penetrating agent. The invention further discloses a pitaya root mite control method. The method comprises the following steps: cutting off diseased roots of pitaya plants, digging out the diseased roots of pitaya from soil, and then treating the diseased roots of pitaya in a unified way; suspending healthy trunks through a suspension device, and airing incisions for later use; pouring the pitaya root mite killing composition diluted by water into soil pits; subjecting the healthy trunks to cutting and planting into soil, and irrigating the soil with a certain amount of a rooting agent to promote rooting; and irrigating the surface of the soil around the healthy trunks which restore growth by using the pitaya root mite killing composition diluted by water. The method is low in investment, and other crops do not need to be replanted; mites are thoroughly killed without relapse; root systems recover and grow quickly; and blooming and fruiting of pitaya are rapidly recovered.

Description

technical field [0001] The invention relates to the technical field of pitaya planting, in particular to a pitaya root mite extermination composition and a method for preventing and controlling pitaya root mites. Background technique [0002] Dragon fruit is an important tropical economic crop in China, with a planting area of ​​about 1 million mu in China. Currently, dragon fruit is propagated by cuttings. Pitaya root mite belongs to the subclass Acari, Acarinae, and Acaridae. It is a worldwide harmful mite and is widely distributed in China. The development of root mite from egg to adult mite goes through five stages: egg, first nymph, second nymph, third nymph and adult. Pitaya root mite mainly harms the roots of dragon fruit, living in the roots and feeding on the root system of the dragon fruit. The early symptoms are that the leaves of the dragon fruit are gradually shriveled, the growth is short, the fruit becomes smaller, and the yield decreases. In the later stage ...

AI Technical Summary

Problems solved by technology

[0003] At present, there are two methods for the prevention and control of pitaya root mites. One is to eradicate all diseased fields of pitaya and replant other crops for 2 to 3 years. The advantage of this method is that the control is thorough, but the disadvantage is that the loss is huge. Cement plants are planted in columns and rows, which is basically drip irrigation and fertilization integrated facility agriculture. According to the estimation of Guangxi Jinsui Agricultural Group, the investment in seedlings, cement plants, steel wire ropes, labor and fertilizers for one mu of dragon fruit in the first year is 20,000 yuan. Left and right, eradicating all other crops in rotation has huge economic losses

The second method is to irrigate acaricides directly near the rhizosphere soil of dragon fruit, such as chlorpyrifos, thiazophos and other agents. This method has a certain effect, but the disadvantage is that it cannot be killed, it is easy to relapse, and the root recovery is slow. Root mites hide in the root system under the soil, and general chemicals need to pass through the soil to reach the root system; the so-called incomplete killing means that root mites like to hide deep in residual roots, it is difficult to clean them, and they are easy to recur repeatedly; the so-called slow root recovery is Refers to the poor vitality of the root system after being damaged by root mites, or even local necrosis. After killing the root mite, the root system recovers very slowly

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