How to Kill Roaches

Cockroaches are not just creatures that others dislike. Cockroaches have been in existence for over 300 million years, with most thriving in warm, safe, and dry environments. They commonly inhabit offices and homes. Cockroaches are not merely disliked by others; the proteins in their secretions are also significant factors causing allergic rhinitis and asthma, especially among children living in crowded rooms and urban areas.

1. Carefully inspect drains, wall cracks, floor gaps, and windows to learn how to eliminate cockroaches in your home and prevent them from entering.

2. Keep indoor areas dry, as cockroaches thrive in humid environments. Ensure there are no leaks, particularly in kitchens. Additionally, regularly clean stoves and other areas.

4. Use insecticides to exterminate cockroaches when no one is at home. Methods to kill mold. Cockroaches are nocturnal household pests. As they eat, they defecate, making themselves dirty, carrying pathogens, contaminating food, and spreading various diseases such as paratyphoid fever, dysentery, tuberculosis, and acute hepatitis. Cockroaches are ancient insects with a history of over 320 million years. Fossils from the Carboniferous period show little difference in appearance from today's cockroaches. What is the most effective method to kill cockroaches? The "Sunflower Manual" for quick cockroach extermination provides strategies on how to deal with cockroaches.

Cockroaches have existed for over 300 million years, thriving in warm, safe, and dry environments. Not only are they disliked by others, but the proteins in their secretions are also important factors causing allergic rhinitis and asthma, especially among children living in crowded rooms and cities.

Methods to eradicate cockroaches:

1. Carefully inspect drains, wall cracks, floor gaps, and windows to prevent cockroaches from entering.

2. Keep indoor areas dry, as cockroaches thrive in humid environments. Ensure there are no leaks, especially in kitchens.

3. Maintain cleanliness indoors. In clean, dry environments, cockroaches will feel unwelcome. After meals, promptly seal food, clean up garbage on the floor and in trash bags, wash dishes with hot water, and avoid leaving dirty dishes that attract cockroaches. Regularly clean stoves and other areas.

4. Use insecticides to exterminate cockroaches when no one is at home.

Cockroaches are nocturnal household pests. During the day, they mostly hide in kitchen corners or gaps in cabinets. At night, they come out to look for food. They eat almost anything—sweet, smelly, hard, or soft. Sometimes they chew the glue on book spines, damaging books; they enter televisions and radios, biting through wires; they can even bite infants' skin and fingers. They also consume feces, phlegm, and small plant carcasses. As they eat, they defecate, getting dirty, carrying pathogens, contaminating food, and spreading diseases like paratyphoid fever, dysentery, tuberculosis, and acute hepatitis.

Cockroaches are ancient insects with a history of over 320 million years. Fossils from the Carboniferous period show little difference in appearance from today's cockroaches. Since the Carboniferous period, many insects have become extinct due to environmental changes, but cockroaches have survived resiliently, becoming living fossils, demonstrating their strong vitality.

Now, cockroach footprints are almost everywhere in households, even expanding to large hotels. Even ocean-going ships have become "free heavens" for cockroaches. Sometimes during the day, they boldly crawl across decks and walls, behaving arrogantly.

If you try to swat a cockroach, it's not so easy. At night, if you quietly walk into the kitchen and suddenly turn on the light, you'll see the cockroach scurry away into dark corners.

Why are cockroaches so agile? This is closely related to their body structure. Cockroaches have flat bodies with an oily sheen. Their abdominal back plates have openings for secretion glands that emit foul-smelling liquids. On their triangular heads, they have two simple eyes and a pair of compound eyes. Their upper jaws form a fan shape, overlapping like scissors, with nodules between teeth that crush hard objects like pliers. Around their mouths are four whiskers and many short hairs. The whiskers are tools for gathering food, while the short hairs are taste and smell organs with sensory nerves that help them find food or avoid poison bait. The nerve endings in their leg joints are extremely sensitive, detecting even slight vibrations, which explains why cockroaches can sense the lightest footsteps. The tail filaments at the end of their tails are complex vibration sensors that perceive external stimuli and enable them to quickly escape.

How do we deal with cockroaches? People have devised some methods to trap cockroaches.

Exploiting cockroaches' preference for bitter food, use a narrow-mouthed long-necked glass bottle with bitter food inside and sesame oil on the rim. Cockroaches enter the bottle but cannot climb out due to the slippery walls.

Exploiting cockroaches' habit of hiding in cracks, use a cardboard box with slits on the lid, coated with adhesive inside and sprinkled with fresh bread crumbs, trapping cockroaches that enter to steal food.

Exploiting cockroaches' habit of scraping off dirt on their backs against hard surfaces, sprinkle sharp-edged diatomaceous earth in room corners. When cockroaches rub their bodies against it, the waxy layer on their surface gets excessively removed, leading to dehydration and death.

We can also disrupt cockroaches' ability to sense vibrations. For example, upon seeing a cockroach, immediately make a "shoo" sound and quickly strike it, making it easier to kill.

Chemical substances can also be used to control cockroaches. In places where cockroaches rest and move, spray 0.5% dichlorvos, 0.03% cypermethrin, or boric acid powder, or place cockroach tablets, which can effectively kill cockroaches. A pyrethroid insecticide called "Cockroach Killer" has been tested in kitchens of cargo ships, oil tankers, and riverboats. Spraying 300 ml of the solution in a 60 cubic meter cabin causes immediate excitement and death of cockroaches. Some appear unconscious but die within a day, while the toughest ones don't survive more than five days.

Recently, scientists at Japan's National Institute of Genetics discovered that toads (commonly known as frogs) are natural enemies of cockroaches. In their small animal breeding room, cockroaches once proliferated uncontrollably. After introducing some toads, the cockroaches soon disappeared. Autopsies revealed that most of the toads' stomachs contained cockroach remains.

A scientist in Kansas, USA, developed a sex pheromone trap that lures male cockroaches using toxic sticky paper. This pheromone mimics the scent emitted by female cockroaches, attracting male cockroaches to the sticky trap where they are poisoned. Even a small amount of this pheromone can lure male cockroaches within eight meters in less than five seconds. Dutch scientists have also synthesized a similar pheromone, indicating that complete eradication of cockroaches may soon be possible. One day, these methods could be widely used to ensure that cockroaches "go extinct."

Recently, domestic researchers have developed a chemically synthesized substance that releases a special aroma, enticing cockroaches to engage in sterile mating. Over time, this prevents cockroaches from reproducing.