CS217346B1 - Folding trap for insect monitoring - Google Patents

Abstract

The invention relates to a foldable trap for monitoring insects. It consists of a tubular casing with a suspension wire, which is closed on both sides by fronts, at least one of which is hinged and provided with a fixing loop and in which there is an inlet opening of a defined shape and an opening for rainwater drainage, while the inner wall of the casing is provided with glue or a lethal agent is placed inside the casing and further inside the casing there is a pheromone capsule for attracting insects. The trap does not require complex production technology, is easily transported in a disassembled state and is characterized by simplicity of operation. It is advantageous to use a cheap but durable material that ensures the usability of the trap body in conjunction with the same chemical attractant for a number of seasons. The overall design and shape of the trap ensures biological effectiveness for a number of insect species. The trap can be used in agriculture, forestry and in warehouses, especially for food raw materials.

Description

The subject of the invention is a collapsible trap for monitoring insects.

Various prognostic and signaling methods are used to detect pests and to control chemical protection against harmful insects in agriculture, forestry and warehouses. E.g. No. 69954 discloses an insect trap consisting of a sheet of paper of suitable color, which is rolled up or twisted around, for example, a branch and fastened with a cuff and which is provided with an adhesive layer on the outside. The cable is the color of the paper.

Signaling germs are commonly used to monitor the apple wrapper, which consists in keeping the larvae of the pest in the germ and monitoring the adult's trip to determine the date of spraying. Another method of estimating adult flight, such as the apple wrapper, is to calculate the sum of the effective outdoor temperatures above the development threshold of the pest.

Similar methods are used for many other pests. Recently, pheromone-based chemical attractants, i.e., substances affecting the behavior of insects, such as sexual attractants, have been used for pest monitoring. The advantage of monitoring systems using substances with pheromone efficiency is considerable specificity (attract only certain species), simplicity of operation and technical undemanding. Synthetic chemicals (pheromones or pheromone mimics), traps and lepes, or lethal means to trap captured insects in the trap are integral parts of the monitoring system.

The traps used so far have some drawbacks: Foldable paper traps, usually of a canopy shape, are only disposable and are deformed due to weather conditions, which can affect the catch standard. Too open shapes of roof traps are also less suitable because birds occasionally get stuck in these traps and, in addition to the target pest, also indifferent insects and some useful species such as ladybugs, lacewing and adult flies flower flies (this insect looks for open types of traps as resting places). Shapely suitable and for many species also very effective trap having the shape of shells of two identical truncated pyramids connected by bases is tested and used in our country for monitoring of several agricultural pests. However, this trap is structurally disadvantageous, complicated for mass production, its operation is time-consuming and must be disassembled when checking the catch (Stuttgart type).

These drawbacks are overcome by the collapsible trap according to the invention, which is based on the fact that the body is closed and has one or two fronts, one of which is hinged, in which a port of defined shape and an outlet for rainwater discharge. the forehead may be solid, freely slip-on or slip-on, the shape of the air inlet being selectable according to the type of insect.

The cylinder casing need not be rigid, for example a tube section, but can be formed by a coiled foil that is provided with, for example, a shaping ring or a clamp, foreheads and a hinge.

The invention solves the shape and construction of a trap body and is useful in conjunction with suitable lures and glues (or deadly agents) for a variety of pests, particularly for butterflies harmful to agriculture, forestry and warehouses, such as the apple wrapper (Cydia pomonella), apple wrapper (Hedya nubiferana), Apricot Wrappers (Enarmonia formosana), Wrappers

217 346 marbled (Lobesia botrana), carabiner (Eupoecilia ambiguella) carabiner (Cydia funebrana) and many other insects.

This trap can be stored and transported in an unfolded state. The glue can be applied to a suitable part of the foil (ie to the part of the foil that will be exposed in the lower inner half of the trap - unless it is resolved by the insertion glue bottom or insect trapping is not solved). The cross section of the pipe casing need not always be circular, but it can also be droplet, elliptical, square or rectangular, etc. The cross section of the trap body corresponds to the shape of the fronts (lids).

The fronts (lids) may further be provided as insertion or slip-on and are of proportionally strong and at the same time elastic material so as to contribute to the fixation of the tubular shape of the trap body. Preferably, the fronts are attached to facilitate handling during the catch controls. The fronts can also serve to fix the insertion glue bottom. The front of the trap is equipped with an air port in the upper part and a small drain port in the lower part.

Can be used as material; sheet metal, waxed or otherwise impregnated cardboard with metal foil (for cylinder or conical crucible for various variants), eventually plastic, PVC foil, polystyrene etc. and on the front of the traps polyethylene, polystyrene etc. It is preferable that the color of the traps is inconspicuous , light (not yellow - attracts some insects, especially aphids), the fronts (lids) of traps can be translucent or transparent. The shape, not the material used, is decisive for the function of the trap; with regard to the material, however, it is always necessary to test the efficacy of chemical attractants and, if necessary, to adjust the dosage of the active substances or to specify instructions on the applicability of pheromone capsules, which is important for the durability of the chemical attractant.

The trap does not require demanding production technology, is easily transported in the unfolded state and is characterized by simplicity of operation. Advantageously, a cheap but durable material can be used to ensure the usability of the trap body in conjunction with the same chemical attraction for a number of seasons. The overall design and shape of the trap ensures biological efficacy for a number of insect species comparable to the types used so far. Conical shaped traps can be stored and transported together.

1 to 4 show schematically exemplary embodiments of an insect trap according to the invention. FIG. 1 shows a trap with the shape of a circular tube in front view; FIG. 2 shows a trap with an axonometric view of the shape of a truncated pyramid shell;

in the same view, the trap shape of the drop shaped tube and in FIG. 4 the face of the trap according to FIG.

1, which enclosed my circular cross-section.

The trap consists of a casing 1 in the form of a tube of circular cross section (FIG. 1) with a suspension wire

2, which serves to suspend the pheromone capsule 8 inside the tube. The tube is formed by a plastic foil which is packed into a cylinder and fixed by two rings 2 *.

On both sides of the casing 1, the fronts 2 are inserted, which can be easily tilted, since they are rotatably mounted in the upper part in the fixing tab 4, which forms a wire ring. In each face 2 there is ^an inlet opening 2 (its shape see Fig. 4) and an outlet 2 for rainwater drainage. The lower half of the inner wall of the shell 1 is painted with glue 2 (eg Bird Tanglefoot,

217 346

Tanglefoot Comp., Mich.USA) or the trap is equipped with means for killing insects.

One of the faces J to the trap shown in FIG. 1 with a rainwater inlet 6 may also be made of a thin plastic film (FIG. 4). The housing 1 may have the shape of a truncated pyramid and two faces 2 (Fig. 2).

Another example (Fig. 3) is a sheath 1 having a drop-shaped cross-section and made of a coiled plastic foil clamped in the upper part by a fastening tab 5, a strip in the center of which is attached a hanging wire 2. removable foil 10. coated with adhesive layer. Other design is similar to previous types.

The trap ae is fixed by a hinge, which can also be used to attach the pheromone capsule 8 inside the trap. The capsule 8 is suspended below the ceiling of the trap. The composite trap is exposed to the appropriate environment (orchard, field, forest, storage, etc.) correspondingly for the given insect species. During the inspection, the plug-in head 6 is folded out and the insects caught are counted and removed. The trap can be used to monitor insects to determine the term of protection, to determine the threshold of harmfulness or the so-called critical number and ev. for catching some pests (ie as a direct combat method).

The advantage of the designed type of the trap is the construction simplicity, folded storage, durability and ease of operation. Compared to the open canopy shapes of the trap, higher efficiency (eg for apple wrappers) and specificity for the target species (fewer indifferent insect species, especially predators, has been ensured), the trap is safer for useful birds. it is advantageous both with regard to the use of traps for determining the term of protective measures, and especially with regard to the use of pheromone traps for determining the level of harmfulness.

Trapper can be used in agriculture, forestry and in warehouses especially food raw materials. - ·

Claims (1)

A collapsible insect monitoring trap consisting of a hollow body provided with a hanging wire, the shell of which is glued on the inside and / or is placed inside the shell with lethal means and an insect-attracting pheromone, characterized in that the body is closed and has one or two faces (3), at least one of which is hinged, in which there is an inlet (5) and an outlet (6) for draining rainwater.