Should spiders in the house be removed?

Should spiders in the house be removed?

Whether to remove spiders depends on your tolerance and the number of spiders. Spiders are not pests — they help catch mosquitoes, flies, and other flying insects.

Benefits of keeping spiders

• Spiders are natural insect catchers; one spider can eat a dozen small insects a day.
• A spider quietly building a web in a corner does not disturb your life.
• No extra cost; spiders help control pests for free.

When to remove them

• Too many webs affect the cleanliness and appearance of the home.
• Spider droppings (small dark spots about 1 mm) on window sills, walls, and floors become difficult to clean over time.
• Children or pets may accidentally touch spiders, causing concern.
• Fear of spiders makes you uncomfortable.

How to manage scientifically

If you decide to keep a few:

• Keep webs in corners; clean webs in walkways and frequently touched areas.
• Regularly wipe away droppings to maintain hygiene.

If you decide to remove them all:

• Use a broom to sweep away webs and spiders, or vacuum them up.
• Spray deltamethrin-containing household insecticide along corners, window frames, and door frames to prevent re-webbing.
• At the same time, reduce the number of flying insects indoors; without a food source, spiders will not return.

An important point to note

A large number of spiders indoors essentially means there are also many other small flying insects. Even if you remove the spiders, if flying insects are not controlled, the spiders will return. The fundamental solution is to simultaneously reduce flying insect breeding.