How does dichlorvos act on cockroaches, how quickly does it kill them, do they all die from it, and how long does it last? Below are detailed answers to these questions.
In the last century, cockroaches were fought with dangerous poisons. Dichlorvos is one of those. It was synthesized by dehydrochlorination of chlorophos and released until 1989.
But did you know that the cans with the inscription "Dichlorvos", from which the store shelves are bursting today, have nothing to do with the same dichlorvos? Their main difference from the original is the absence of a substance from the FOS group in the composition.
Consider whether the original drug helped to get rid of cockroaches and how dichlorvos works on cockroaches now.
A bit of history
The formula of the poisonous substance was developed in the middle of the last century in the USSR. It is based on dimethyl dichlorovinyl phosphate, a powerful insecticide of neuroparalytic action. The product was produced in aerosol cans and emitted a pungent specific odor.
Before the appearance of the first insecticides, insects had to be poisoned with kerosene and turpentine, so Dichlorvos quickly gained popularity. The aerosol was distinguished by its powerful toxic properties, which spread not only to pests, but to people. To use it without harm to health, strict safety rules were required.
Precautions
Although the drug Varan is considered harmless to people, pets, it will not be superfluous to take safety measures:
- The treatment must be carried out in protective clothing that will cover the entire surface of the body;
- It is necessary to close the respiratory system. It is best to use an industrial respirator. But you can use a gauze bandage. If you get a sore throat, dry cough while working with an insecticide, you need to leave the room and get some fresh air. Such a symptom is an indicator of the penetration of a poisonous substance into the throat;
- Eyes must be protected with glasses. If the product gets on the mucous membrane, rinse immediately with plenty of water;
- You can not spray a poisonous substance into the technical openings of electronics - televisions, computers. The action of some components of poisonous drugs will negatively affect the operation of these devices.
If you follow the precautions, the risk of poisoning is significantly reduced.
Svetlana, Nakhodka:
“We rented a cottage on vacation. There were a lot of cockroaches there. They noticed only at night, when the light was turned on, and they began to scatter. In the nearest store we bought Varan dichlorvos. We thought it would smell disgusting, but it turned out to be a worthy remedy. We also got rid of flies and other insects along the way. Mosquitoes didn’t bother me either, although they were near the lake ”.
Composition and varieties of modern Dichlorvos
For half a century, the formula has undergone dramatic changes. Now dimethyl dichlorovinyl phosphate has been supplanted from the composition by modern insecticides, which have a gentle effect on humans and the environment, but destructive to insects.
On the shelves of hardware stores, there is a wide selection of aerosols under the Dichlorvos brand. They are available in 300 and 500 ml iron aerosol cans. Thanks to fine spraying, this amount is enough to process a two-room apartment with an area of 50 sq. m.
The following lines are very popular:
- Neo;
- Varan;
- Taiga;
- Clean house;
- Super.
The active substances of the drugs are cypermethrin and permethrin, which are second-generation pyrethroids, and piperonyl butoxide, a synergist that increases the toxic properties of insecticides.
Modern Dichlorvos includes additional components that eliminate the unpleasant odor of toxic substances. Fragrances create the scent of lavender, pine needles, wildflowers. If desired, you can purchase a completely odorless product.
Which to choose
Depending on the manufacturer, there are several options for the execution of dichlorvos. The main difference is in the use of various pyrethroids and their combinations. Do not buy a drug where only one insecticide is indicated in the composition - most likely, such a can is an order of magnitude cheaper, but there is little sense from it.
The optimal amount of active ingredients is 2-3, which determines whether the remedy will help. How dichlorvos will smell, choose according to your preferences - this does not play a role in the effectiveness of baiting insects and serves only to mask the smells of pyrethroids. Depending on how many cockroaches are found, choose the required volume.
| Name | Appearance |
| Neo |
|
| Monitor lizard |
|
| Super |
|
| Eco |
|
Effects on cockroaches
Cypermethrin and permethrin easily penetrate the pests through the respiratory tract and chitinous shell. Toxic substances block the passage of nerve impulses, cause suffocation, impaired motor reflexes and rapid death of the insect.
The insecticidal activity of the drug lasts 15 days. A cockroach, running over the treated surface, stains its paws in microscopic particles of poison. They penetrate through the insect shell, provoking poisoning.
After a day, do a wet cleaning of the room.
Maximum efficiency is observed with direct exposure to cockroaches. Strong individuals who have inhaled a small percentage of toxic fumes can survive if they have free access to water.
The insecticide eliminates adult cockroaches and nymph larvae. He is unable to enter the ooteca - the storage of eggs. To eliminate young growth, it is recommended to re-process after half a month.
Safety regulations
By purchasing Dichlorvos from odorless cockroaches or scented, do not forget about its toxicity. Any form of release of the drug belongs to the 3rd class of hazardous substances and requires caution when using.
In the process of disinsection, observe the safety rules provided for working with toxic substances:
- pull tight rubber gloves on your hands;
- protect the respiratory tract with a respirator;
- protect the organ of vision with glasses.
Put on moisture-proof clothing on your body. A special rubberized protective suit is available.
Before processing, be sure to remove pets and family members from the apartment. The drug has a serious toxic effect on fish, ornamental birds, and cats.
Pack food in plastic bags or airtight containers and place in the refrigerator. Take the dishes to the balcony. It is important that she does not come into contact with Dichlorvos vapors.
How to deal with bedbugs
Dichlorvos
Unlike ants with mosquitoes, bugs scare the residents of the house with their appearance, bite and spread diseases such as fever, typhoid, tularemia. The goal of the little bloodsuckers is to drink as much blood as possible. When attacked, the insect can inflict more than 500 bites.
The appearance of parasites in the house causes moral and physical harm. Therefore, the issue of combating them is very relevant.
You can get rid of adversity in the following ways:
- folk remedies;
- with the help of specialist disinfectants;
- processing the premises with chemicals.
The last option belongs to the universal, it is considered the most affordable, since it does not cause problems with the purchase of drugs. Pest control products are sold in retail and online stores. They are represented by pencils, aerosols, traps, powders, deterrent substances. When working with each of them, familiarization with the instructions and compliance with safety requirements are important. The simplest and most affordable method for killing bedbugs is odorless dichlorvos.
Instructions
Close the windows and doors in the apartment. Dry the sink, shower stall and bathroom dry. Put plastic plugs on the sockets. Inspect the area, paying particular attention to:
- skirting boards;
- cracks in the walls;
- gas stove;
- the area behind the refrigerator and behind the battery;
- food cabinets;
- bathroom.
In these places, cockroaches make nests, so they gather in large numbers. Once you've found a clump of colony, spray the cockroaches liberally and destroy the dense brown egg capsules.
- Move the furniture to the middle of the room. Take the balloon in your hand, shake it and process the room at a distance of 20 cm from the surface, slowly moving from one corner to another.
- Spray the spray onto sewers, door frames, baseboards, walls, and furniture.
- Carefully clean the ventilation hole. After disinsection, the Prussians, fleeing from the poison, run to their neighbors through the ventilation shaft. To prevent migration, place a trap inside or cover the hole with plastic.
Approximate expense for 1 sq. m - 3 ml. When treating soft surfaces and wooden furniture, double the spray rate. Dichlorvos does not spoil the upholstery of sofas and does not leave stains on things.
Actions in case of poisoning
It is necessary to use "Dichlorvos" and its analogs with extreme caution. But even protective clothing and a respirator are not 100% guaranteed. Residual vapors of the insecticide can be inhaled by households.
Stages and symptoms
Depending on the severity, there are three stages of Dichlorvos poisoning. Their characteristics are given in the table.
Table - Stages of Dichlorvos poisoning
| Poisoning stage | Time of manifestation | Symptoms |
| First (excitement) | In 20 minutes | - Dizziness; - emotional excitement; - migraine; - nausea; - lack of coordination; - bronchial cough; - constriction of the pupils; - tachycardia; - high blood pressure |
| Second (convulsive) | In a few hours | - Physical weakness; - labored breathing; - frequent urge to urinate; - muscle spasms; - a state of stupor; - fainting; - increased salivation; - lack of reaction of pupils to light |
| Third (paralytic) | In a few hours | - Loss of consciousness; - complete immobility; - lack of response to external stimuli; - rapid breathing |
Noticing the signs of the initial stage of poisoning with "Dichlorvos", you need to immediately provide the person with first aid. The second and third stages require hospitalization and medical treatment. You need to react quickly, because the consequences of poisoning can be the most serious.
First aid
Symptoms of mild poisoning (first stage) disappear in three hours with timely first aid. It has four points.
- Access to fresh air. It is best to take the victim outside. If this is not possible, you need to transfer the person to an untreated room and open the windows.
- Correct position. The victim should relax, so it is better for him to lie down.
- Removing obstacles to breathing. You need to unbutton the collar and belt on your trousers. It is better to take off tight clothes.
- Clearing the upper respiratory tract. If the victim is conscious, you need to prepare a weak soda solution to rinse your mouth and throat.
If the victim has lost consciousness, in no case let him smell ammonia. It is strictly forbidden to give soda and laxatives to drink.
The insecticide has a high prophylactic activity. If you know that neighbors have cockroaches or insects in the entrance, immediately spray the area of the front door and ventilation openings with an aerosol. After that, the pests will definitely not pop up.
Cleaning
After completing pest control, leave the room for 5-6 hours, or better for a day. When you return, open the windows and ventilate the dwelling for half an hour. Put in a bucket of hot water, dissolve 5 tablespoons of baking soda and the same amount of shavings of laundry soap. Neutralize poison by cleaning floors, stove, food cabinets.
In hard-to-reach places, it is better not to do cleaning for half a month in order to maintain the insecticidal activity of Dichlorvos.
After the floor is dry, the apartment becomes safe. Return pets and family members there, remove dishes from the balcony, wash and put back.
Review of Dichlorvos reviews
People highly appreciate aerosol insecticides and leave good reviews about Dichlorvos from cockroaches. Users confirm that the poisonous ability is maximally manifested when processing pest nests and are advised to combine disinfestation with a drug using traps, poisonous gels and crayons.
Julia from the Ryazan region shared her experience of using Dichlorvos in a two-room apartment:
“Last year cockroaches got in from neighbors. The hardware store advised Dichlorvos Varan odorless. Sprayed with the product the places where the Prussians congregate, furniture in the kitchen and in the rooms, the cracks under the windowsill, the bathroom, and left for a day. When I returned, I found the corpses of pests right on the floor. In order not to leave the slightest chance for the parasites, after cleaning I applied an insecticidal gel to the baseboards. I can say that pest control met expectations. The Prussians disappeared and do not appear again. "
Feedback from people leaves no doubt that, if the instructions are followed, Dichlorvos shows good performance and reliably protects the house from the invasion of cockroaches.
Preparing the apartment for processing
In multi-storey buildings, cockroach families regularly migrate to numerous apartments. Constant population growth leads to such movements. If the number of individuals exceeds the critical mass mark by one square meter, then some of the insects are sent to explore new territories.
Moreover, it is not at all necessary that cockroaches come to the apartment in pairs. It is so arranged by nature that a once fertilized female can give birth to offspring throughout her life. If only one individual has entered your home, then very soon the number of parasites will increase to unimaginable sizes. The sooner you notice such unpleasant neighbors in your house, the easier and faster the process of their destruction will pass.
Most often, cockroaches enter new territories through:
- ventilation and smoke shafts;
- cracks in ceilings and slabs;
- sewer pipes;
- grooves in the walls.
Therefore, in order to rid yourself of the newly arrived individuals, it is necessary to isolate the apartment from general communications. For this.
Install a special decorative grill with a mesh on the ventilation duct. Seal all existing gaps thoroughly.
Pay special attention to the places on the windowsills, baseboards, entrance doors. Do not forget about the tie-in of sewer pipes, water and gas pipes. As practice shows, these are the weakest areas in the "defense" of the apartment. Pay attention to the entrance to the apartment of the central vein from an electric meter, a television antenna or an Internet cable
If necessary, seal all holes and microcracks tightly.Despite the fact that manufacturers of chemical insecticides declare their complete safety for the human body, you should not expose yourself to dubious risks. Before baiting insects, be sure to pack all foodstuffs, cover dishes and kitchen utensils with plastic wrap so that more than one drop of aerosol does not subsequently enter the gastrointestinal tract of any member of your family. If you have a fish tank, remember to cover it with glass and turn off the air compressor. Pyrethroids dissolve well in liquids, and retain all their properties even in an aquatic environment, so they can seriously harm aquarium inhabitants.
Only after that you can start processing the room.
