As a specialist in entomology, I've spent considerable time studying the natural enemies and mortality factors of spiders. Spiders, being a part of the ecosystem, face various threats that can lead to their natural demise. Here are some of the key factors that can naturally kill spiders:


1. Predators: Spiders are prey to a variety of animals. Birds, particularly insectivorous ones, are known to eat spiders. Other predators include lizards, frogs, and even larger spiders that may prey on smaller species.


2. Parasitism: Certain wasps, known as spider wasps or parasitic wasps, lay their eggs on or in spiders. The wasp larvae then feed on the spider, eventually killing it.


3. Diseases and Pathogens: Spiders can be affected by various diseases and pathogens that can lead to their death. Fungal infections, for instance, can be particularly devastating to spider populations.


4. Environmental Factors: Extreme weather conditions such as freezing temperatures, excessive heat, or drought can be detrimental to spiders. They are sensitive to changes in their environment and may not survive harsh conditions.


5. Accidents: Spiders, like any other creature, can fall victim to accidents. They might get trapped in their own webs or fall from heights, leading to injury or death.


6. Starvation: In the absence of prey, spiders can starve to death. This is especially true during periods of low insect activity.

7.
Reproductive Stress: The process of mating and reproduction can be stressful and sometimes fatal for spiders, particularly for the males in species where the female consumes the male post-mating.

8.
Natural repellants: While not a direct cause of death, certain natural substances can deter spiders. For example, garlic and peppermint oil, when mixed with water and sprayed around the house, can help keep spiders at bay.

It's important to note that while some of these factors can lead to the death of spiders, they also contribute to the balance of the ecosystem. Spiders play a crucial role as predators of pests, and their control should be approached with consideration for the environment.

read more >>

Create garlic repellant by putting two or three cloves of garlic in a spray bottle. Use this natural spray when needed. Repell spiders with peppermint oil mixed with water. Apply the repellent along window sills, doors and other locations and areas used by spiders for coming inside the house.read more >>