CN112021059A - Novel method for controlling bactrocera minax - Google Patents
Novel method for controlling bactrocera minax Download PDFInfo
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- CN112021059A CN112021059A CN202011021189.4A CN202011021189A CN112021059A CN 112021059 A CN112021059 A CN 112021059A CN 202011021189 A CN202011021189 A CN 202011021189A CN 112021059 A CN112021059 A CN 112021059A
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- bactrocera minax
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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Abstract
The invention discloses a new method for controlling citrus fruit flies, which comprises the following steps: after the oviposition peak period of the bactrocera minax is finished, drilling holes in the fruit tree trunk to inject a pesticide, wherein the pesticide is emamectin benzoate. The method disclosed by the invention is used for innovatively adopting a mode of injecting pesticides into the drilled holes to control the bactrocera minax, killing the bactrocera minax in the egg and larva periods, making up for the technical shortage that the bactrocera minax cannot be controlled once fruits lay eggs, adding new control measures, improving the control level of the bactrocera minax, being efficient, simple and convenient, having an obvious control effect, greatly reducing the workload and the economic cost for controlling adults in the later period, and greatly reducing the economic loss.
Description
Technical Field
The invention relates to the technical field of plant disease and insect pest control, in particular to a novel method for controlling citrus fruit fly.
Background
Bactrocera minax (Enderlein), also known as Bactrocera minax, citrus maggot, yellow fruit worm, belongs to the family of Biterales, the family of Drosophilaceae, commonly known as "citrus maggot", is a devastating pest of citrus, whose damaged fruit is also known as the maggot citrus. China, Sichuan, Guizhou, Yunnan, Hubei, Hunan, Chongqing, Shaanxi, Guangxi and other provinces (regions and cities) are distributed, orange fruits are damaged, serious economic loss is caused, and great social influence is brought. In 2008, the wide spread of the citrus fruit fly (maggot orange) occurs in the Guangyuan cang part of the rural orchard, and the great negative influence is difficult to estimate.
The most important methods for controlling the fruit flies at present comprise the following two methods: firstly, the damaged fruit is removed, before the fruit is ripe, the immature first yellow worm fruit is manually removed, and the yellow worm fruit is intensively buried or filled into a plastic bag to be treated by organic phosphorus or chrysanthemum ester medicaments. Secondly, the adult eclosion is prevented and controlled by spraying pesticide on the whole garden in the first full period, or the insecticide and sugar vinegar are used for trapping and killing. When both methods take labor cost and are imago, the better control effect is difficult to obtain under the condition of rural labor shortage. In addition, the current control measures show that once the bactrocera minax adults lay eggs in citrus fruits, no good measures are provided for the eggs in the fruits and hatched larvae, and the eggs and the hatched larvae are manually removed only until the fruits are mature at the later stage.
Therefore, it is necessary to invent a new method for efficiently and simply controlling fly eggs and hatched larvae of fruits and citrus truffles, so as to reduce economic loss, reduce labor force and avoid adverse social effects. At present, no report for directly controlling bactrocera minax eggs and larvae exists, and the current bactrocera minax control is a measure for adult insects.
Disclosure of Invention
The invention aims to solve the problems and provides a novel method for controlling the eggs and hatched larvae of the Bactrocera minax, which greatly reduces the Bactrocera minax in the early stage and greatly reduces the control workload of adult Bactrocera minax in the later stage, and has remarkable control effect.
In order to achieve the purpose, the invention adopts the technical scheme that:
a novel method for controlling Bactrocera minax (Roxb.) kurz is characterized in that after the oviposition peak period of the Bactrocera minax (Roxb.) kutz is finished, a hole is drilled in a fruit tree trunk for injecting a pesticide, and the pesticide is emamectin benzoate.
The application amount of the emamectin benzoate is as follows: 0.5ml to 4ml of methylamino abamectin benzoate solution with the concentration of 5 percent is injected into each fruit tree by drilling, and 1.0ml to 3.0ml is optimized.
Further preferably, the amount of emamectin benzoate applied is: 1.0 ml-2.0 ml of methylamino abamectin benzoate solution with the concentration of 5 percent is injected into each fruit tree after drilling.
In the technical scheme, before injection, 5% of emamectin benzoate solution and 10ml of water are mixed uniformly and then injected.
The specific method for drilling injection comprises the following steps: and (3) drilling holes in the lower part of the trunk of the fruit tree, wherein the drilling direction is downward in an inclined mode, the hole diameter is about 4-6.0 mm, and the hole depth is 2-4 cm.
Preferably, the specific method of drilling injection is as follows: drilling holes at the position of a fruit tree trunk 10-30cm away from the ground, wherein the drilling direction is inclined downwards by 30-60 degrees, the aperture is about 4.5-5.5 mm, the hole depth is 2-3cm, and 1 hole is drilled in each tree.
Further preferably, the drilling direction is inclined downwards by 45 degrees, and the aperture is about 5.0 mm.
In the technical scheme, the pesticide is injected into the drilled hole by adopting the needle tube, and the wound is sealed by the tree wound healing paste after the pesticide completely permeates into the tree body.
The invention has the beneficial effects that: the method has the advantages that the method innovatively adopts a mode of injecting pesticides into the drilled holes to control the bactrocera minax, kills the bactrocera minax in the egg and larva period, makes up for the technical shortage that the bactrocera minax cannot be controlled once fruits lay eggs, adds new control measures, improves the control level of the bactrocera minax, is efficient and simple, has obvious control effect, greatly reduces the workload and economic cost for controlling adults in the later period, and can greatly reduce economic loss.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to be limiting.
The experimental procedures in the following examples are conventional unless otherwise specified.
1 conditions of the test
1.1 selection of test subjects, crops and varieties
Bactrocera minax (Enderlein) of Bactrocera citriodora
Citrus citrus
Citrus sinensis (Citrus sinensis)
1.2 crop cultivation and environmental conditions
The test is carried out in the district Ming's town of Kaizhou city of Chongqing in 2018, the terrain of the orchard is flat, the management level of fertilizer and water is basically consistent, and the illumination condition is good. The hovenia dulcis thunb is grown for 8-10 years, the row spacing of the plants is 4 multiplied by 3m, 50 plants are planted per mu, the average plant height is 2.13m, and the crown width is 2.01 m. The experiment is carried out after the spawning peak period of the bactrocera minax is finished (the spawning peak periods of different places are different, Chongqing is generally in the middle and late 6 months, and the spawning peak period is determined after each place monitors the condition that the bactrocera minax imagoes return to the citrus orchard).
2 test design and arrangement
2.1 test Agents and sources
5% Emamectin benzoate Water dispersible granule Zhejiang Zhongshan chemical group Co Ltd
5% Avermectin Missible oil Shandongtai agricultural chemical Co Ltd
20% Imidacloprid soluble liquid Jiangsu Changqing Biotech limited
200 g/l Chlorantraniliprole suspension, American Fumeishi Co
2.2 dosage and treatment number
TABLE 1 test design of test agents
Before the injection of the medicament, liquid medicament and water are respectively taken according to the dosage and the water consumption in the table 1, are uniformly mixed and then are injected into a tree body.
2.3 cell arrangement
2.3.1 cell arrangements
2、4、3、1、4、3、2、3、1、2、1、2、4、3、1、4
2.3.2 cell area and repetition
Cell area (or number of plants): 4 trees are planted in each cell, and protection trees are reserved among the cells.
The number of repetitions: each treatment was repeated 4 times (cell).
2.4 methods of application
Drilling and injecting: the method comprises drilling holes on adult citrus trees by using an electric drill, drilling holes on the adult citrus trees by using a drill bit of 0.8mm, wherein the drilling position is the base of a trunk which is 10-30cm away from the ground, the drilling direction is inclined downwards by 45 degrees, the hole diameter is about 5.0mm, the hole depth is 2-3cm, and 1 hole is drilled in each tree. The corresponding agents in table 1 were dissolved in water and the solution was injected into the drilled holes with a needle. After the liquid medicine completely permeates into the tree body, the wound is sealed by using a commercially available tree wound healing paste (product of Guanghuang agrichemical chemical Co., Ltd. in Sichuan) to prevent other plant diseases and insect pests from infecting the trunk. The blank control is prepared by punching holes on the tree and injecting clear water.
2.5 methods of investigation
Marking 40 damaged fruits in each cell before the pesticide, picking the damaged fruits 15 days after the pesticide, splitting the fruits and observing the number of the live and dead eggs and larvae in the fruits. Marking 80 damaged fruits in each cell before pesticide application for observing fruit retention effect, investigating fruit drop situation 20 days after pesticide application, investigating once every 10-20 days, recording fruit drop quantity (fruit drop caused by other factors is not counted) until harvesting, and finally summarizing the total fruit drop quantity.
2.5 method of calculating drug efficacy
Control effect (%) < 1- < total number of insects investigated in control area x number of living insects investigated in treatment area/total number of insects investigated in control area x number of living insects investigated in treatment area x 100 >
Fruit retention effect (%) - (1-number of damaged fruit examined in control area x number of fallen fruit in treatment area/number of fallen fruit examined in control area x number of damaged fruit examined in treatment area) × 100
3 results and analysis
And (3) evaluation of the medicament: the field efficacy test result shows that 5% emamectin benzoate has very ideal control effect on citrus immature fly eggs and larvae by punching application, the control effect on larvae by 1.0 ml/strain, 2.0 ml/strain and 3.0 ml/strain treatment reaches 99.80%, 100% and 100% respectively 20 days after application, the control effect is remarkably superior to that of 3.0 ml/strain of 5% abamectin missible oil, 3.0 ml/strain of 20% imidacloprid soluble solution and 3.0 ml/strain treatment of 200 g/l chlorantraniliprole suspending agent, the specific result is shown in tables 2 and 4, the table 2 is an average value of 4 times of repetition, and the table 4 is an original result value of all experimental plots. Because of ideal prevention and control effects on eggs and larvae, all tested concentrations of 5% emamectin benzoate have extremely ideal fruit retention effects on harmful fruits at the later stage, the fruit retention effects of 1.0 ml/plant, 2.0 ml/plant and 3.0 ml/plant treatment reach 100%, the fruit retention effects are remarkably superior to those of 3.0 ml/plant of 5% abamectin missible oil, 3.0 ml/plant of 20% imidacloprid soluble solution and 3.0 ml/plant treatment of 200 g/L chlorantraniliprole suspending agent, the specific results are shown in tables 3 and 5, the table 3 is an average value of 4 times of repetition, and the table 5 is an original result value of all experimental communities. The method makes up for the technical shortage that once the bactrocera minax lays eggs in fruits, the bactrocera minax can not be controlled at present, adds a new control measure, and improves the bactrocera minax control level. No chemical injury to citrus fruits and leaves is found in the range of the experimental dosage, and the control method can be popularized and applied in production.
The technical points are as follows: experiments of controlling the bactrocera minax larvae and protecting fruits in the field show that the 5 percent methylamino abamectin benzoate has excellent control effect on the eggs and hatched larvae of the bactrocera minax in the fruits, and 1.0 ml/plant to 2.0 ml/plant is economical in production. However, the application period and the application method need to be well mastered, and the application should be carried out by adopting the drilling method as soon as possible after the peak period of spawning.
TABLE 2 test results of different pesticides for controlling Bactrocera minax
Note: different letters in the same column represent significant differences between treatments when a is 0.05, and the remaining tables are identical.
TABLE 3 fruit protection test results for fruits harmed by Bactrocera minax
TABLE 4 statistical table of the results of tests for controlling Bactrocera minax with different pesticides
TABLE 5 statistical table of fruit-protecting effect of different pesticides on citrus fruit fly
Claims (8)
1. A new method for controlling Bactrocera minax is characterized in that: after the oviposition peak period of the bactrocera minax is finished, drilling holes in the fruit tree trunk to inject a pesticide, wherein the pesticide is emamectin benzoate.
2. The novel method of claim 1 for controlling bactrocera minax, wherein: the application amount of the emamectin benzoate is as follows: 0.5ml to 4ml of methylamino abamectin benzoate solution with the concentration of 5 percent is injected into each fruit tree by drilling, and 1.0ml to 3.0ml is optimized.
3. The novel method of claim 2 for controlling bactrocera minax, wherein: the application amount of the emamectin benzoate is as follows: 1.0 ml-2.0 ml of methylamino abamectin benzoate solution with the concentration of 5 percent is injected into each fruit tree after drilling.
4. A novel method of controlling bactrocera minax according to claim 2 or 3, characterized in that: before injection, 5% emamectin benzoate solution is mixed with 10ml water and then injected.
5. The novel method of claim 1 for controlling bactrocera minax, wherein: the specific method for drilling injection comprises the following steps: and (3) drilling holes in the lower part of the trunk of the fruit tree, wherein the drilling direction is downward in an inclined mode, the hole diameter is about 4-6.0 mm, and the hole depth is 2-4 cm.
6. The novel method of claim 5 for controlling Bactrocera minax, wherein: the specific method for drilling injection comprises the following steps: drilling holes at the position of a fruit tree trunk 10-30cm away from the ground, wherein the drilling direction is inclined downwards by 30-60 degrees, the aperture is about 4.5-5.5 mm, the hole depth is 2-3cm, and 1 hole is drilled in each tree.
7. The novel method of claim 6, wherein the method comprises the steps of: the drilling direction is inclined downwards by 45 degrees, and the aperture is about 5.0 mm.
8. The novel method of claim 1 for controlling bactrocera minax, wherein: the pesticide is injected into the drilled hole by a needle tube, and the wound is sealed by the healing paste for the wound of the tree after the pesticide completely permeates into the tree body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011021189.4A CN112021059A (en) | 2020-09-25 | 2020-09-25 | Novel method for controlling bactrocera minax |
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| CN202011021189.4A CN112021059A (en) | 2020-09-25 | 2020-09-25 | Novel method for controlling bactrocera minax |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101692836A (en) * | 2009-10-15 | 2010-04-14 | 杜进平 | Slow release attractant and usage of Chinese citrus fly |
| CN102007926A (en) * | 2010-12-14 | 2011-04-13 | 杨凌农科大无公害农药研究服务中心 | Liquid formulation containing emamectin benzoate for trunk injection |
| AU2013327395A1 (en) * | 2012-10-03 | 2015-04-23 | Griffith University | Fruit fly olfactory attractant composition and use thereof |
| CN110249887A (en) * | 2019-07-01 | 2019-09-20 | 宜昌王小二农业科技有限公司 | A kind of citrus insect prevention diseases prevention high-yield planting method |
-
2020
- 2020-09-25 CN CN202011021189.4A patent/CN112021059A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101692836A (en) * | 2009-10-15 | 2010-04-14 | 杜进平 | Slow release attractant and usage of Chinese citrus fly |
| CN102007926A (en) * | 2010-12-14 | 2011-04-13 | 杨凌农科大无公害农药研究服务中心 | Liquid formulation containing emamectin benzoate for trunk injection |
| AU2013327395A1 (en) * | 2012-10-03 | 2015-04-23 | Griffith University | Fruit fly olfactory attractant composition and use thereof |
| CN110249887A (en) * | 2019-07-01 | 2019-09-20 | 宜昌王小二农业科技有限公司 | A kind of citrus insect prevention diseases prevention high-yield planting method |
Non-Patent Citations (4)
| Title |
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| 兰亦全等: "１０种杀虫剂对桔小实蝇幼虫的毒力及２种药剂复配的联合作用", 《中国南方果树》 * |
| 刘奎等: "常用杀虫剂对桔小实蝇化蛹和成虫存活的影响", 《中国南方果树》 * |
| 朱更瑞: "桃树病虫害防治技术", 《果农之友》 * |
| 王俊等: "植物病虫害无公害防治技术简介", 《福建农业科技》 * |
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