Spiders – arthropods part of the Arachnida order, an order that includes over 40,000 species identified so far. They are present all over the globe except Antarctica. Because they can penetrate indoor areas and create discomfort because of the nets they weave, control treatments are performed against them.

Spiders – Signs of infestation

The presence of spiders is often noticed by finding their characteristic webs and by actually detecting their presence. If webs are found, their removal is advised, followed by vacuuming and cleaning the respective area (indoor), followed by the application of specific treatments.

Spiders – Types of treatments

To control spiders, it is recommended to carry out treatments with concentrated insecticides applied by spraying, ready-made insecticides, and for monitoring, it is recommended to use adhesive traps.

Application of indoor spray treatments

The solution is prepared according to the specifications on the label and is applied by spraying on surfaces, especially around baseboards, door/window frames, underneath appliances, in cabinets or storage spaces, etc., following the recommendations on the label, depending on the chosen product.

Recommended insecticides for spider control:

They are biocidal substances used for treatments against spiders, most of them acting on the insect’s nervous system. It is applied by spraying on surfaces, in the area of ​​baseboards, door/window frames, or under appliances. They are applied with manual or motorized equipment, depending on the size, space, and treated surface.

Recommended sprayers for the application of insecticides:

Sprayers are low-pressure applicators, used for the application of pesticides with precise dosing. Their capacity varies depending on the type of device, its design, the application method (manual/motorized sprayers), the size of the treated space. Special attention must be paid to the settings of the device, as well as to its maintenance.

Spiders – Aerosol insecticide treatments

Indoors, immediately following spray treatments, the application of an aerosol insecticide is recommended. Before using the insecticide, depending on the treated space, it is recommended to close any doors or windows. The product must be left to act for a few hours, during which time the space must remain closed, according to the specifications on the label.

Aerosol insecticides recommended for spider control:

Aerosol-type insecticides act by releasing the active substance in a gaseous form, thus covering the entire space to be treated and ensuring the penetration of the active particles into hard-to-reach areas. They come pre-dosed and ready to use. For optimal results, the treated room will be kept closed for at least 2 hours.

Ready-to-use insecticide treatments

They can be found in the form of powders, granules, liquid, spray. Ready-to-use insecticides are applied to dry surfaces. Because they act by contact or ingestion, insects must traverse the treated space. It is advisable to carefully read and follow the recommendations on the label of the chosen product.

Taking into account that liquid insecticides cannot be applied on electrical installations, ventilation systems, etc., for such cases, powder or granule formulated insecticides are used. Ready-to-use insecticides are applied to dry surfaces.

Recommended ready-to-use insecticides for spider control:

Ready-to-use insecticides are pre-dosed solutions and can come in several forms (spray, powder, granules, etc.). Applications are made depending on the treated space, taking into account the information on the product label. For optimal results, they are usually applied as close as possible to the source of infestation.

In hard-to-reach areas, powder insecticides can be applied with a special dispenser.

Recommended dispensers for the application of powder insecticides:

Dispersers are devices specifically designed for the application of granular or powder (dust) products. They are mainly used to treat hard-to-reach spaces.

If two types of treatments are performed, the spray must be applied before the application with ready-made insecticides (no solution will be applied after the ready-to-use insecticide). After the solution has dried, powder or granule insecticides can be applied.

Insecticide strips

They are special strips that release an insecticidal substance that eliminate spiders within their range. They are generally placed in uninhabited storage spaces, protected from access by people or animals. Not recommended for small spaces (cabinets, drawers). Once hung, the tapes can provide protection long-lasting protection against insects (3-4 months).

Adhesive spider traps

Adhesive traps are not used to control spiders but are employed to monitor the degree of infestation. They are installed depending on the space (as well as the type of trap), behind cabinets, appliances, or in areas such as the attic or basement. Traps can be placed even after the application of chemical treatments to verify their results and monitor the treated space. Subsequently, if necessary, follow-up chemical treatments may be considered.

Recommended traps against spiders:

Adhesive traps have the role of capturing pests on a certain surface and monitoring their activity. Their size and design differ depending on the type of product. Traps are removed together with the insects caught in the adhesive.

Outdoor spider control treatments

Spiders can be aesthetically displeasing because of the webs they form on vegetation, as well as on various areas of the house, and as such, treatments to control them are applied outdoors. Exterior treatments are carried out with insecticides applied by spraying, especially around the foundation, on the outside of the structures, around the door/window frames, on vegetation, etc.

Recommended insecticides for spider control:

They are biocidal substances used for treatments against harmful insects, most acting by contact or ingestion, with effects on their nervous system. The solution is applied by spraying, using manual or motorized equipment, depending on the size of the treated space.

Recommended sprayers for the application of insecticides:

Sprayers are low-pressure applicators that are used for the application of pesticides with precise dosing. Their capacity varies depending on the type of device, its design, the application method (manual / motorized sprayers), and the size of the treated space. Special attention must be paid to the settings of the device, as well as to its maintenance.

If vegetation is abundant, it is recommended to carry out the treatments with the help of an atomizer.

Recommended atomizers for the application of insecticides:

The atomizer is a gasoline-powered spray gun. It has a higher spray rate than ordinary devices, so it is used mostly for outdoor treatments against harmful insects, with direct application on vegetation.

Protective equipment

Protective equipment has the role of protecting the person performing the disinfection treatments. To avoid inhalation of vapors created during spraying or direct contact with the applied substances, it is recommended to wear complete protective equipment. This includes: hooded protective coveralls, gas masks with filters, chemical protection gloves, rubber boots, or waterproof footwear, as necessary.

Recommended protective equipment:

Protective equipment has the role of protecting the person performing the treatments from dangerous substances. This category includes protective gloves, coveralls, masks, etc. The equipment is chosen depending on the type of treatment, as well as the substances used and the targeted insect.

• Hooded chemical protection suit

• Protective gloves

• Gas masks, glasses

In conclusion, for efficient spider control, it is recommended to carry out the treatments from the first signs of their appearance, using adequate products depending on the treated space (interior/exterior), maintaining cleanliness (vacuuming surfaces, dusting), and eliminating food sources to prevent reinfestation.