Stethorus punctillum - Spider Mite Control


Package contains 100 beetles.


Two-Spotted Spider Mites (Tetranychus urticae), European Red Mites (Panonychusulmi), Spruce Spider Mites (Oligonycus ununguis) and Southern Red Mites (Oligonychus ilicis).



Stethorus is a small beetle in the lady beetle family, measuring around 1.5mm. With a dark brown to black oval body and brownish-yellow features, it preys on spider mites at all life stages. They have the ability to fly and locate even small infestations.


100 beetles per “hot spot,” or 10 beetles per infested plant, weekly, for 3-4 weeks.
100 beetles per “hot spot,” or 3-4 beetles per 10 sq. ft., weekly until established in all infested areas.

It's important to note that these release rates serve as general guidelines and may vary based on the specific pest species, the crop or plant being treated, and level of infestation. Proper monitoring of the infestation and the subsequent effectiveness of the released beneficial insect population is crucial for determining the success of the biological control strategy.


To achieve a comprehensive approach in controlling Spider Mites, it is recommended to combine the use of Stethorus with other beneficial predators such as Predatory Mites and other Protectants & Treatments.



For best results, release within immediately upon receipt. If storage is necessary, store at 50°-61°F for no longer than 48 hours. 



The complete life cycle of Stethorus beetles typically takes around 14 to 20 days when the temperature ranges between 70°-80° F. Female beetles lay an average of 3 to 13 eggs per day. Throughout their lifespan, which can span up to 2 years, females can lay over 1,000 eggs. To initiate and sustain egg laying, females need to consume around 20 to 40 spider mites per day.

The larvae of Stethorus beetles have a feeding period of approximately 10 to 14 days. During this time, a single larva can consume up to 240 spider mites as it progresses from the egg stage to adulthood. As the larvae grow older, they migrate down the plant to find suitable locations to pupate. Pupae are often found along leaf veins on the undersides of leaves.

Adult Stethorus beetles emerge from the pupal stage in about 6 to 7 days. Both larvae and adult beetles feed on all stages of mites. Adult beetles have a voracious appetite and can consume more than 50 mite eggs and 10 adult mites per day. In situations where food is scarce, they may also feed on other small arthropod eggs, aphids, nectar, pollen, and even engage in cannibalism within their own species.