CATDOLL : CATDOLL: What plants can prevent cockroaches?

1. Dieffenbachia

Dieffenbachia can remove formaldehyde and repel cockroaches. If you have cockroaches at home, you can choose Dieffenbachia. It likes a warm, humid and semi-shady environment. It grows vigorously in summer and needs to be placed in a shaded place to avoid strong light exposure, otherwise, it is easy to cause the leaves to dry and burn, affecting the ornamental effect.

2. Catnip

Some research reports record that catnip's ability to repel mosquitoes is 10 times that of mosquito spray, so catnip is the best plant to repel mosquitoes. However, cat families are not suitable for raising catnip, as it is not very healthy for cats.

3. Lavender

Lavender itself has insecticidal effects. People usually make lavender sachets and put them in cupboards. Some people also put them in the bedroom to repel mosquitoes.

The following considerations need to be noted:

1. For water-grown plants, change the water regularly; for soil-grown plants, clean up the water accumulated at the base in time.

2. Put onion slices or fresh oleander leaves in the closet to repel insects. But oleander is not suitable for indoor planting.

3. Arrange the location of the plants in the home according to their different preferences, meeting their needs for sunlight, temperature, and at the same time repelling pests just right.

4. For sanitary dead corners, such as damp corners and dark corners, clean and dry them, and place insect repellent plants there for more obvious effects.

Additional information:

How to effectively kill cockroaches

1. Use a small lead-caliber long-necked glass bottle, put some sweet food in the bottle, apply sesame oil on the bottle mouth, and let the cockroaches enter the bottle. Because the bottle wall is very slippery, it is difficult for them to crawl out.

2. Take advantage of the habit of cockroaches to drill into cracks. Use a cardboard box, make some cracks on the lid, apply glue inside the box, sprinkle some fresh bread crumbs, and let the cockroaches drill in to steal food and get stuck.

3. Take advantage of the habit of cockroaches to scrape off dirt on their backs on hard objects, and sprinkle some hard and sharp diatomaceous earth in the corners of the room. When the cockroaches go there to rub their bodies, too much of the wax on the surface will be rubbed off. As a result, a large amount of water in the cockroaches' bodies will be lost, and they will die of dehydration.

Reference source: People's Daily Online - Cockroaches are very harmful. 5 effective ways to kill them

Cockroaches usually hate poisonous plants, and plants containing toxic glycosides are the most effective, including plants such as Dieffenbachia, Oleander, Capricorn, Periploca, Marigold, Lily of the Valley, and Digitalis.

However, these plants are not only annoying to cockroaches, many of them are also harmful to humans, so in theory using plants to control cockroaches is not feasible.

Therefore, the common methods are to use fresh peach leaves, cucumber slices, etc. Some extreme methods are to plant onions indoors to repel cockroaches, but the smell is not very pleasant and the effect is not satisfactory.

It is worth adding that in the biological control method, the "white-fronted tall-legged spider" or its subspecies - the middle hunting crab spider and the spotted hunting crab spider are occasionally seen indoors in southern China. These spiders are huge, non-toxic, and rarely bite humans and animals. They are the main natural enemies of cockroaches, flies, and moths in the home. If you leave this spider in your home, it is best not to drive it away or kill it. When the number of cockroaches is insufficient, they will migrate naturally. This spider eats about ten to twenty cockroaches a day, and the amount of food intake will increase during the breeding season.

…This is more reliable than raising chickens indoors.

In addition, the only way is to strengthen indoor sanitation, avoid the accumulation of garbage in dead corners, install drainage for deodorization and backflow, and regularly check the cracks in the walls. But the most important point is that cockroaches can tolerate hunger but not thirst, so it is necessary to ensure that there is no damp and moldy place in the room to prevent cockroaches from living there for a long time.

1. The most popular environmentally friendly poison bait

This is an environmentally friendly bait formula that is strongly recommended by the Homemakers Alliance Environmental Protection Foundation.

1 box of boric acid, 250g 1 onion (about the size of a fist) ground into dices, 150g flour, 1 tablespoon of sugar, half tablespoon of milk powder. Squeeze out some juice from the onion pieces and mix with other ingredients, stirring evenly. Do not add too much water. Roll into small balls and flatten them. It is best to make them not sticky. About 50 balls can be made. Then place them one by one on paper and dry them in the shade for a week before use. Can be used in a wardrobe. If stored in a dry and closed space, the effect can be maintained for several months.

The US Environmental Protection Agency recommends that the average household should place 12 to 20 poison baits, with 1 to 10 in the kitchen and at least 2 in the bathroom. Wang Zhengxiong, an adjunct professor at the Department of Public Health at National Taiwan University who has done extensive research on domestic cockroaches, has found that raisins, butter, and alcohol also have a good combination of luring effects.

According to research, most cockroaches like to drink alcohol, so Europeans often soak bread in wine to lure cockroaches.

2. Catch cockroaches alive with wine bottles

Professor Wang Zhengxiong's unique method of catching cockroaches. Use an empty wine bottle with some leftover wine as bait, put some sugar in it, and lean the bottle mouth against the wall. The cockroaches will fall into the bottle when they are greedy for wine. It is said that a bottle full of cockroaches can be caught in one night. Live cockroaches can be used for experiments, fed to fish, or scalded to death with hot soapy water to prevent them from escaping.

3. Boric acid mopping to prevent cockroaches

After dissolving an appropriate amount of boric acid in hot water, wipe the floor with a mop or rag. After it is dried, the white boric acid crystals will penetrate into the gaps in the floor, which can prevent cockroaches, ants, etc.

4. Grandma’s soda method to prevent cockroaches

The most commonly used soda recipe for cockroach repellent in the United States originated in Arizona. Mix half sugar and half baking soda and place it in places where cockroaches are found. After about 3 to 14 days, the cockroaches will disappear. There is a saying that this is because the stomach of cockroaches is acidic and they cannot accept the alkalinity of the mixture of sugar and baking soda entering their stomachs, and they will be poisoned and die.

5. Natural Plant Cockroach Repellent

According to data provided by the Environmental Protection Agency, a mixture of cucumber peels, laurel or chrysanthemum petals and alcohol can be sprinkled once a week in areas infested with cockroaches to kill newly hatched cockroaches.

6. Chrysanthemum wine spray

Method provided by the Environmental Protection Agency: Pick off the three outermost petals of fresh chrysanthemums, dry them in the sun or oven, grind them into powder, put them in a light-proof bottle, add 120cc of alcohol, and place them at room temperature for 24 hours, shaking them occasionally.

Afterwards, filter out the impurities, put it in a sprinkler and spray it. It has an effect on repelling cockroaches, flies, fleas, beetles, etc.

7. Soap shreds and hot water

Add one cup of soap shreds to 4 liters of hot water, dissolve it, and spray it directly on the cockroaches to effectively kill them.

8. Orange and lemon peels to repel cockroaches

Placing some dried or roasted orange peels, lemon peels and other Rutaceae plants in the cupboard can also prevent cockroaches.

For example, the green radish can beautify the environment and prevent cockroaches. It is said that cockroaches do not like this plant. Of course, there are also tropical plants such as Venus flytraps and pitcher plants, but they are not easy to raise.

Marigold: It has a pungent smell, and mosquitoes dare not approach it. It is a special and excellent natural insect repellent.

Pyrethrum: The flowers contain pyrethrum, which can poison mosquitoes and kill them.