Spiders' weaknesses include a fragile abdomen that can rupture from falls, susceptibility to insecticides and pesticides, vulnerability to predators like birds and wasps, and sensitivity to vibrations which can betray their location, all while lacking significant armor compared to other arthropods, making them weak to blunt force and chemical attacks.
Physical Weaknesses
Fragile Abdomen: A short fall can cause their abdomen to burst, leading to bleeding and death, notes Quora.
Lack of Armor: Compared to scorpions, spiders have thinner exoskeletons, especially on their underside, making them vulnerable to direct attacks.
Poor Eyesight (Vibration-Based): While excellent at detecting vibrations, their lack of true ears and reliance on sensory hairs can be exploited by strong vibrations or sudden air puffs.
Environmental & Chemical Weaknesses
Insecticides/Pesticides: They are susceptible to common pest control chemicals.
Bad Weather: Extreme conditions can be detrimental to them.
Strong Smells: Peppermint, tea tree, and eucalyptus oils can repel them.
Behavioral & Predatory Weaknesses
Predators: Birds, wasps, and lizards are natural predators.
Blunt Force Trauma: Squishing them is effective due to their delicate bodies.
Lack of Strength (Relative): Despite their web-building skills, their raw physical strength isn't exceptional compared to some other small creatures.