CN112120029A - Environment-friendly poison bait for killing Opiophoides formosanus - Google Patents

Abstract

The invention discloses an environment-friendly Potentilla fuliginea poison bait for killing and treating Potentilla fuliginea, which comprises the following components: the pesticide composition comprises chlorantraniliprole, 75% alcohol and masson pine blocks, wherein the mass ratio of the chlorantraniliprole to the masson pine blocks is more than or equal to 5mg to 14g, and the minimum content is 357 mg/kg. The poison bait for killing the spotted maigre has good insecticidal effect, wide insecticidal spectrum and difficult generation of drug resistance, and has two functions of insect killing and environmental protection.

Description

Environment-friendly poison bait for killing Opiophoides formosanus

Technical Field

The invention belongs to the technical field of pesticides, and particularly relates to an environment-friendly termite killing and controlling Taiwan lactotermite poison bait.

Background

The main methods for termite control are: physical control and chemical control. Physical control is mainly to establish a barrier (such as sand, stainless steel mesh, etc.) for preventing termites from entering by using a physical method. The physical prevention and treatment in China are still in a groping and exploring stage, and the practical application is few. In China, chemical control is still the main control for termite control, and commonly used control medicines include imidacloprid, bifenthrin, chlorpyrifos and the like. Imidacloprid is a nicotine high-efficiency pesticide, has multiple effects of contact poisoning, stomach toxicity, systemic absorption and the like, has a good control effect on termites, has extremely high toxicity on highly toxic pesticides of silkworms and shrimps, and has potential toxicity (especially genetic toxicity) on bees. In 8 months 2017, the european union proposed that imidacloprid be banned from use in open air environments. Bifenthrin is a high-efficiency synthetic pyrethrin insecticide and acaricide, has a special chemical structure, has both high-efficiency poisoning effect and unique repelling effect, has a longer lasting period than chlorpyrifos, so that the bifenthrin has longer effective control time and better control effect when being used for preventing termites in a newly-built house, can exist in the environment for a long time, has potential biological enrichment effect and biological amplification risk at the same time, can cause unacceptable risk to the aquatic environment, and European Committee decides to gradually eliminate bifenthrin as insecticide and acaricide and is planned to be prohibited to be used in a greenhouse. Chlorpyrifos is an organophosphorus insecticide, has the effects of contact poisoning, stomach poisoning and fumigation, and has strong stomach poisoning and contact poisoning effects on odontotermes formosanus and formosanus. However, high doses of chlorpyrifos can lead to a reduction in cognitive ability of the animal, and prolonged exposure to low doses can also affect higher cognitive functions in the central nervous system. In recent years, due to the continuous discovery of the biotoxicity of chlorpyrifos and the environmental safety issues that it creates, the united states and european union countries have banned chlorpyrifos to some extent.

Since 2009, termite monitoring and control systems have been rapidly developed domestically. The termite monitoring and controlling system is characterized in that a monitoring and controlling device is buried in soil around a house building, when termites invade into the monitoring and controlling device to eat, the termites are treated by poison bait or powder, and the purpose of killing the termites in a whole nest is achieved through the transmission effect of the toxicity. The method can monitor the termites in the building construction area for a long time, prevent the termites from invading due to the failure of the chemical barrier, use a very small amount of medicine when discovering the termites invade, release a very small amount of toxic chemicals in the environment, and avoid the possible environmental pollution risk caused by the release of a large amount of toxic chemicals in the soil barrier treatment. At present, the termite control powder inquired on a pesticide information network comprises the following components: the pesticide composition comprises 0.5% of fipronil powder (fipronil is medium in toxicity, wide in insecticidal spectrum, has contact toxicity, stomach toxicity and moderate systemic action, has great toxicity to bees and aquatic organisms and is not friendly to the environment, and the requirement of the ministry of agriculture is that from 7.1.2009, pesticide preparations containing fipronil components are stopped selling and used in other aspects in China except for sanitary and part of upland field seed coating agents), 98% of disodium octaborate tetrahydrate (used for pressure soaking of wood), 98.8% of zinc borate (used for adding in board processing), cypermethrin (medium in toxicity, has stimulation to skin mucosa and is not suitable for being used as a soil pesticide).

Termite control medicines belong to sanitary pesticides and are closely related to daily life of people. The traditional control method has large dosage and high application concentration; conventional drugs present potential safety hazards to ecology, humans, livestock and non-target organisms. And the ecological environment of China is generally fragile and ecological safety and serious in shape at the present stage, and the termite-killing and controlling poison bait is efficient and environment-friendly, can better relieve the problems that chemical pesticides destroy ecology and the like, and conforms to the trend of the progress of the times.

Disclosure of Invention

The invention aims to provide environment-friendly bait for killing and controlling the Laurencia formosana, so as to solve the problems that the existing termite killing agent pollutes the environment and destroys the ecology.

In order to achieve the technical purpose, the invention specifically adopts the following technical scheme:

an environment-friendly poison bait for killing Ophiopogon japonicus, which comprises the following components: the mass ratio of the chlorantraniliprole to the carrier is more than or equal to 5mg to 14 g.

Preferably, the minimum content of chlorantraniliprole is 357 mg/kg.

The poison bait also comprises a solvent, and the solvent is selected from 75% alcohol.

The carrier is selected from masson pine blocks.

The invention also provides a preparation method of the poison bait for killing the Opiophoides formosanus, which comprises the following steps:

1) taking a masson pine block, placing the masson pine block in a constant-temperature drying oven, keeping the temperature for 24 hours at the temperature of 60 +/-1 ℃, and weighing the masson pine block after the temperature is restored to room temperature;

2) weighing chlorantraniliprole in a beaker, and adding 75% alcohol to dissolve the chlorantraniliprole to form 2500mg/kg of liquid medicine;

3) immersing the masson pine blocks in the liquid medicine, and sealing the beaker;

4) taking out the wood block after 24 hours, weighing, and calculating the weight of the liquid medicine absorbed by the wood block and the content of the medicament;

5) standing in indoor environment for 3 days, and calculating the content of the dried wood block medicament to be 357mg/kg when the alcohol is completely volatilized;

6) packaging to obtain the environment-friendly poison bait for killing the Taiwan lactotermite.

When the bait is used, bait is firstly put in to trap a large number of termites, then the bait is put in, according to the fact that the termites are social insects and have obvious life habits of grade differentiation and feeding behavior, after workers feed the bait, the workers feed soldiers and queen termites, and the toxicity of the medicine is transferred to the whole termite nest group. Under the use concentration of the pesticide, the chlorantraniliprole is not less than 357mg/kg and has no evasion to termites, and the pesticide has slow toxicity, so that the aim of killing the termites in the whole nest with little dosage can be achieved.

The invention has the beneficial effects that:

the environment-friendly poison bait for killing the Taiwan emulsion termites, disclosed by the invention, has the main component content of chlorantraniliprole, has a poisoning effect on the termite, and has no evasion. Chlorantraniliprole is a diamide pesticide, can activate an insect ryanodine (muscle) receptor, excessively releases calcium ions in cells, and leads to paralysis and death of insects, has the action mode of mainly stomach toxicity, has certain contact poisoning effect, is high-efficiency to target organisms, is safe to non-target organisms, has low toxicity, and does not have 'three causes' effect and nerve and reproductive toxicity. The prior research shows that the chlorantraniliprole has better poisoning effect on the termites, is a potential termite control drug, has no repellency to the termites, and has a slower knockdown speed than bifenthrin. At present, the termite control in China is in the transformation and upgrading stage, and the traditional chemical drug control method with large drug usage amount, high usage concentration and large environmental impact is replaced by a green and environment-friendly control means to become the main melody of the times. The environment-friendly termite killing and controlling Taiwan Ophiopogon japonicus Poir poison bait can achieve the purpose of killing the whole nest of termites with small dosage.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The embodiment specifically provides an environment-friendly termite control ivory bait, which is prepared by the following steps:

1) taking a masson pine block, placing the masson pine block in a constant-temperature drying oven, keeping the temperature for 24 hours at the temperature of 60 +/-1 ℃, and weighing the masson pine block after the temperature is restored to room temperature;

2) weighing chlorantraniliprole in a beaker, and adding 75% alcohol to dissolve the chlorantraniliprole to form 2500mg/kg of liquid medicine;

3) immersing the masson pine blocks in the liquid medicine, and sealing the beaker;

4) taking out the wood block after 24 hours, weighing, and calculating the weight of the liquid medicine absorbed by the wood block and the content of the medicament;

5) standing in indoor environment for 3 days, and calculating the content of the dried wood block medicament to be 357mg/kg when the alcohol is completely volatilized;

6) packaging to obtain the environment-friendly poison bait for killing the Taiwan lactotermite.

Example 2

The embodiment specifically provides an environment-friendly termite control ivory bait, which is prepared by the following steps:

1) taking a masson pine block, placing the masson pine block in a constant-temperature drying oven, keeping the temperature for 24 hours at the temperature of 60 +/-1 ℃, and weighing the masson pine block after the temperature is restored to room temperature;

2) weighing chlorantraniliprole in a beaker, and adding 75% alcohol to dissolve the chlorantraniliprole to form 3750mg/kg of liquid medicine;

3) immersing the masson pine blocks in the liquid medicine, and sealing the beaker;

4) taking out the wood block after 24 hours, weighing, and calculating the weight of the liquid medicine absorbed by the wood block and the content of the medicament;

5) standing for 3 days in indoor environment, and calculating the medicament content of the dried wood block to be 428mg/kg after the alcohol is completely volatilized;

6) packaging to obtain the environment-friendly poison bait for killing the Taiwan lactotermite.

Example 3

The embodiment specifically provides an environment-friendly termite control ivory bait, which is prepared by the following steps:

1) taking a masson pine block, placing the masson pine block in a constant-temperature drying oven, keeping the temperature for 24 hours at the temperature of 60 +/-1 ℃, and weighing the masson pine block after the temperature is restored to room temperature;

2) weighing chlorantraniliprole in a beaker, and adding 75% alcohol to dissolve the chlorantraniliprole to form 5000mg/kg of liquid medicine;

3) immersing the masson pine blocks in the liquid medicine, and sealing the beaker;

4) taking out the wood block after 24 hours, weighing, and calculating the weight of the liquid medicine absorbed by the wood block and the content of the medicament;

5) standing for 3 days in an indoor environment, and calculating the medicament content of the dried wood blocks to be 714mg/kg when the alcohol is completely volatilized;

6) packaging to obtain the environment-friendly poison bait for killing the Taiwan lactotermite.

Example 4

Testing of termites: white ivy ant coptottermes for mosanus, worker ants and soldiers with uniform individuals are healthy and bred indoors for more than 1 week by masson pine blocks.

Reagent to be tested: 95% chlorantraniliprole (Hefekang, Tai biological pharmacy Co., Ltd.).

Test materials: a climatic chamber (German IRM technology), an electronic balance (Shenyang Longteng electronics Co., Ltd.), a water purifier (Chengdu super pure technology Co., Ltd.), a constant temperature drying chamber (Shanghai Lang gan Experimental facilities Co., Ltd.), a volumetric flask, a petri dish, an analysis filter paper, a pipette gun, an ophthalmic forceps, etc.

The test method comprises the following steps: placing the wood blocks (1 x 1cm) in a constant-temperature drying oven, keeping at 60 + -1 deg.C for 24 hr, taking out, weighing, and keeping; taking 48g (60ml) of 75% alcohol in a 100ml beaker, weighing chlorantraniliprole according to the mass fractions of 5000, 3750 and 2500mg/kg in the beaker, and stirring to fully dissolve the medicament; soaking the wood block (1 x 1cm) in a beaker, and sealing the beaker with a sealing film; taking out the wood blocks after 24h, weighing, and placing for 3 d in an indoor environment until the alcohol is completely volatilized; the test device adopts 3 PVC round cups with the inner diameter of 50mm and the height of 50mm, and the parts 5mm away from the bottom are connected by glass tubes with the inner diameter of 6mm and the length of 50 mm. Before the test, fine sand with the thickness of 5mm passing through a 250-micron sieve is respectively paved in three round cups of the test device and is moistened by adding water. Then, a glass piece having a diameter of 30mm and a thickness of 2mm was placed in each of A, C at the center of the surface of the fine sand in the two circular cups. During the test, the medicated wood blocks are placed in the center of the glass plate in the round cup of the test device A, and the medicated wood blocks which are not taken are placed in the center of the glass plate in the round cup of the test device C. 200 healthy workers and 10 soldier ants are introduced into a round cup of the testing device B. Covering A, B, C round cups of the test device by using a spun yarn net; the device is moved into an incubator with the temperature (27 +/-1) DEG C and the humidity (80 +/-5)% and is raised and observed in the dark. Observing every 24h for 2 weeks, and observing and recording death number of worker ants, wherein the death number of soldiers is not counted. Each treatment was set to 3 replicates. When the control group of worker ants has a mortality rate of more than 10%, the test should be conducted again. Termite death determination criteria: the abdomen of the termites was touched with a blunt object and no response was observed in all parts of the body.

After the wood blocks are dried and soaked in alcohol for 24 hours, the mass ratio of the absorbed alcohol to the wood blocks is 6 g: 7g, the mass ratio of the medicament absorbed by the wood blocks with the liquor of 2500mg/kg to the wood blocks is 5mg:14g, 357 mg/kg. The mass ratio of the medicament absorbed by the 3750mg/kg liquid medicine wood blocks to the wood blocks is 15 mg: 28g, 428 mg/kg. The mass ratio of the medicament absorbed by the wood blocks with 5000mg/kg of liquid medicine to the wood blocks is 5mg: 7g, i.e. 714mg/kg (Table 1).

TABLE 1

In the experiment, each treatment group has different toxicity effects on the termites. On test day 1, none of the termites in each of the treated groups died, on test day 2, the termites in each of the treated groups began to die, and some of the termites had their abdominal portions shrunken. The 714mg/L treated group showed a peak of mortality on day 5, and termites died completely on day 6. The mortality rate of the termites in the 357357, 428mg/L treated groups rose more slowly, and there was no significant difference between the two groups at each observation time (P > 0.1), with the termites dying completely on day 10 (Table 2). In the test, all treatment groups do not show a repelling effect on the white ants, and dead white ants are uniformly distributed in 3 round cups of the test device. In addition, after the termites die in a large number, the remaining few live termites have mite parasitism on the body surfaces.

TABLE 2 Chlorantraniliprole bait treatment of termite mortality

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The environment-friendly Potentilla fuliginosa poison bait for killing Taiwan Ophiopogon laticifera is characterized by comprising the following components: the mass ratio of the chlorantraniliprole to the carrier is more than or equal to 5mg to 14 g.

2. The environment-friendly Potentilla fuliginea killing poison bait according to claim 1, wherein the minimum chlorantraniliprole content is 357 mg/kg.

3. The environment-friendly Poison bait for killing Opiopsis formosanus according to claim 1 or 2, wherein the Poison bait further comprises a solvent, and the solvent is selected from 75% alcohol.

4. The environment-friendly termite exterminating bait for taiwan ivory according to claim 1 or 2, wherein the carrier is selected from masson pine wood pieces.

5. The method for preparing a poison bait for exterminating milky white ants in Taiwan as claimed in claim 1 or 2, which comprises the steps of:

1) taking a masson pine block, placing the masson pine block in a constant-temperature drying oven, keeping the temperature for 24 hours at the temperature of 60 +/-1 ℃, and weighing the masson pine block after the temperature is restored to room temperature;

2) weighing chlorantraniliprole in a beaker, and adding 75% alcohol to dissolve the chlorantraniliprole to form 2500mg/kg of liquid medicine;

3) immersing the masson pine blocks in the liquid medicine, and sealing the beaker;

4) taking out the wood block after 24 hours, weighing, and calculating the weight of the liquid medicine absorbed by the wood block and the content of the medicament;

5) standing in indoor environment for 3 days, and calculating the content of the dried wood block medicament to be 357mg/kg when the alcohol is completely volatilized;

6) packaging to obtain the environment-friendly poison bait for killing the Taiwan lactotermite.