CN102511343A - Prevention and control method for beet armyworm larvae in scallion cultivation process - Google Patents

Abstract

Translated fromChinese

本发明公开一种大葱栽培过程中甜菜夜蛾幼虫的防治方法，目的在于诱杀钻入葱管内的甜菜夜蛾幼虫；具体方法是：在每升配制好的常规甜菜夜蛾幼虫杀虫剂稀释溶液中加入2-4毫升食醋，在甜菜夜蛾幼虫发生初期喷施在大葱的叶片上，至叶片滴水为止，其间每隔5-7天喷施一次，直至葱叶上和葱管内的甜菜夜蛾幼虫全部消灭为止；本发明人通过多年的观察和实验，发现甜菜夜蛾幼虫对食醋具有一定的趋向性，在常规甜菜夜蛾幼虫杀虫剂稀释溶液中添加一定量的食醋喷施在葱叶上，引诱甜菜夜蛾幼虫来舔舐带有食醋味道的杀虫剂，最后甜菜夜蛾幼虫中毒而死；本发明投入小，施用浓度低，防治效果好，防治效果达到90%以上，降低农药残留。The invention discloses a method for preventing and controlling beet armyworm larvae during the cultivation of green onions, the purpose of which is to trap and kill the beet armyworm larvae that drill into the onion tube; Add 2-4 ml of vinegar to the water, and spray it on the leaves of green onions at the early stage of beet armyworm larvae until the leaves drip. Spray once every 5-7 days until the leaves of green onions and the beets in the tubes are sprayed. Moth larvae are all eliminated; the inventor has found that beet armyworm larvae have a certain tendency to vinegar through many years of observation and experiments, and add a certain amount of vinegar to spray in the conventional beet armyworm larvae insecticide dilution solution. On the green onion leaves, lure the beet armyworm larvae to lick the vinegar-flavored insecticide, and finally the beet armyworm larvae are poisoned and die; the invention has small investment, low application concentration, good control effect, and the control effect reaches 90% Above, reduce pesticide residues.

Description

Translated fromChinese

大葱栽培过程中甜菜夜蛾幼虫的防治方法Control methods of beet armyworm larvae in the process of green onion cultivation

技术领域technical field

本发明涉及农作物害虫的防治，尤其是大葱栽培过程中甜菜夜蛾幼虫的防治方法。The invention relates to the prevention and control of crop pests, in particular to the method for preventing and controlling beet armyworm larvae during the cultivation of green onions.

背景技术Background technique

甜菜夜蛾幼虫是一种暴食性的害虫，在大葱的生长过程中危害极为严重，俗称大葱钻心虫，甜菜夜蛾幼虫在大葱上主要是危害叶片，一般从三龄后开始大量进食。幼虫群集叶背，吐丝结网，嚼食葱叶。当葱管被啃食穿后，钻入葱管内隐藏并取食叶肉，只留下表皮，成透明的小孔，轻者被吃成缺刻，孔洞或网状，重者全部吃光，甚至失收；目前对甜菜夜蛾幼虫的防治主要采用化学防治，即选用常规甜菜夜蛾幼虫杀虫剂（如：拟除虫菊酯类杀虫剂或有机磷农药）稀释溶液喷施在大葱的外表，这样可以成功地消灭葱叶表面的甜菜夜蛾幼虫，甜菜夜蛾幼虫不仅具有较厚的表皮、抗药性强，当甜菜夜蛾幼虫钻到大葱的葱管内隐藏食其叶肉时，现有方法喷施到大葱外表的化学药剂很难接触到害虫的皮肤，防治起来非常困难。因此，大葱栽培过程中，由于甜菜夜蛾幼虫危害造成的损失很大，一般性的危害至少减产20%。Beet armyworm larvae are gluttonous pests. They are extremely harmful during the growth of green onions. They are commonly known as green onion core borers. Beet armyworm larvae mainly damage leaves on green onions, and generally start to eat a lot after the third instar. The larvae cluster on the back of leaves, spin silk and make nets, and chew on onion leaves. When the onion tube is eaten through, it will drill into the onion tube to hide and eat the mesophyll, leaving only the epidermis to form transparent holes. The light ones will be eaten into nicks, holes or nets, and the severe ones will be eaten up or even lost. Harvest; at present, the control of beet armyworm larvae mainly adopts chemical control, that is, the diluted solution of conventional beet armyworm larvae insecticides (such as: pyrethroid insecticides or organophosphorus pesticides) is sprayed on the surface of green onions, so that It can successfully eliminate the beet armyworm larvae on the surface of green onion leaves. The beet armyworm larvae not only have thicker skin and strong drug resistance, when the beet armyworm larvae drill into the green onion tube to hide and eat its mesophyll, the existing method sprays The chemicals on the surface of green onions are difficult to contact the skin of pests, so it is very difficult to control them. Therefore, during the cultivation of scallions, the damage caused by the beet armyworm larvae is very large, and the general damage will reduce the yield by at least 20%.

发明内容Contents of the invention

本发明的目的在于提供一种大葱栽培过程中甜菜夜蛾幼虫的防治方法，旨在诱杀钻入葱管内的甜菜夜蛾幼虫。The object of the present invention is to provide a method for preventing and controlling the beet armyworm larvae in the green onion cultivation process, aiming at trapping and killing the beet armyworm larvae that drill into the shallot tube.

本发明的目的是通过以下技术方案予以实现的，大葱栽培过程中甜菜夜蛾幼虫的防治方法，其特征是，在每升配制好的常规甜菜夜蛾幼虫杀虫剂稀释溶液中加入2-4毫升食醋，在甜菜夜蛾幼虫发生初期喷施在大葱的叶片上，至叶片滴水为止，其间每隔5-7天喷施一次，直至葱叶上和葱管内的甜菜夜蛾幼虫全部消灭为止。The object of the present invention is achieved by the following technical scheme, the control method of beet armyworm larvae in the scallion cultivation process, it is characterized in that, add 2-4 One milliliter of vinegar, spray on the leaves of green onion at the early stage of beet armyworm larvae until the leaves drip, and spray once every 5-7 days until all the beet armyworm larvae on the leaves and in the onion tube are eliminated .

所述的常规甜菜夜蛾幼虫杀虫剂是指拟除虫菊酯类杀虫剂或有机磷农药。The conventional insecticides against beet armyworm larvae refer to pyrethroid insecticides or organophosphorus pesticides.

所述的常规甜菜夜蛾幼虫杀虫剂稀释溶液是指按照杀虫剂说明书要求稀释到可以直接喷洒使用的杀虫剂溶液。The conventional diluted insecticide solution for beet armyworm larvae refers to an insecticide solution that is diluted to the point that it can be directly sprayed according to the requirements of the instructions for the insecticide.

本发明人通过多年的观察和实验，发现甜菜夜蛾幼虫对食醋具有一定的趋向性，在常规甜菜夜蛾幼虫杀虫剂稀释溶液中添加一定量的食醋喷施在葱叶上，引诱甜菜夜蛾幼虫来舔舐带有食醋味道的杀虫剂，最后甜菜夜蛾幼虫中毒而死。该方法的优点是：①投入小，节约成本，在一般杀虫剂中添加一定量的食醋即可；②施用浓度低，防治效果好，本方法利用钻心虫舔舐来杀死害虫，防治效果达到90%以上；③农药残留低，在常规杀虫剂中添加一定量的食醋，降低了农药残留。Through many years of observations and experiments, the inventor has found that the larvae of beet armyworm have a certain tendency to vinegar, and add a certain amount of vinegar to the conventional diluted solution of beet armyworm larvae insecticide and spray it on the green onion leaves to attract the vinegar. The beet armyworm larvae come to lick the vinegar-smelling insecticide, and finally the beet armyworm larvae are poisoned and die. The advantages of this method are: ① small investment, cost saving, just add a certain amount of vinegar to general insecticides; The effect reaches more than 90%; ③The pesticide residue is low, and a certain amount of vinegar is added to the conventional insecticide to reduce the pesticide residue.

具体实施方式Detailed ways

在甜菜夜蛾幼虫刚刚发生的时期就开始采用化学药剂防治，化学药剂为拟除虫菊酯类杀虫剂或有机磷农药，具体可选用4.5%高效氯氰菊酯乳油1000倍液或2%阿维菌素1500倍液或15%安打3500倍，然后在每升上述杀虫剂的稀释溶液中添加2-4ml食醋，选择在晴天的下午，利用普通喷雾器进行雾状喷施在大葱的叶片上，至叶片滴水为止，每隔5-7天喷一次，直至葱叶上和葱管内的甜菜夜蛾幼虫全部消灭为止，防治效果达90%以上。When the beet armyworm larvae just occurred, chemical agents were used to control them. The chemical agents were pyrethroid insecticides or organophosphorus pesticides. Specifically, 4.5% beta-cypermethrin EC 1000 times or 2% abamectin 1500 times could be used. Double liquid or 15% hit 3500 times, then add 2-4ml of vinegar to each liter of the diluted solution of the above insecticides, choose to spray on the leaves of green onions with an ordinary sprayer in the afternoon on a sunny day, until the leaves Spray once every 5-7 days until the water drips, until the beet armyworm larvae on the green onion leaves and in the onion tubes are all eliminated, and the control effect reaches more than 90%.

上述实施例仅是本发明的一个较佳实施方式，详细说明了本发明的技术构思和实施要点，并非是对本发明的保护范围进行限制，凡根据本发明精神实质所作的任何简单修改及等效结构变换或修饰，均应涵盖在本发明的保护范围之内。The above-described embodiment is only a preferred implementation of the present invention, and has described in detail the technical conception and implementation points of the present invention, and is not intended to limit the protection scope of the present invention. Any simple modifications and equivalents made according to the spirit of the present invention Structural changes or modifications shall be covered within the protection scope of the present invention.

Claims (2)

1. the method for preventing and treating of beet exigua larvae in the shallot cultivation process; It is characterized in that, in every liter of conventional beet exigua larvae insecticide dilute solution for preparing, add 2-4 milliliter vinegar, when the beet exigua larvae initial stage of origination; Above-mentioned insecticide dilute solution is sprayed on the blade of shallot; Till dripping to blade, whenever therebetween sprayed once at a distance from 5-7 days, on the green onion leaf with the green onion pipe in beet exigua larvae all till the eliminations.

2. the method for preventing and treating of beet exigua larvae is characterized in that in the shallot cultivation process according to claim 1, and described conventional beet exigua larvae insecticide is meant pyrethroid insecticides or organophosphorous pesticide.