Each sticky insert is covert by a foil, and therefore absolutly waterproof. Contact with the glue is prevented by a tongue at the insert. The glue is neutral without any insecticide.

The Bio-Pherorap Deltatrap was developed in the early 1980s and first very successfully applied under the trade name “Biotrap” for monitoring of insect pests in pest management systems. The purpose of monitoring is to save preventative sprays and to optimise the timing of essential sprays. The trap is environment friendly because it can be used for more than one season.

Type of traps:
Bio-Pherotrap Deltatrap has been developed for a large number of different insect pests. Temmen GmbH has more than 50 types of pheromone lures in the program (see pricelist) and are delivered on short notice. The traps have proven their effectiveness over a length of time now. The origin and quality of the pheromone substance, as well as the charging of the lure have knowingly not been changed since the conception of the Deltatrap. This allowed for a significant comparison of the catches over a number of years. In areas with the size of severel hectares multiple traps should be put up. Denoted infestation of fruits in spite of registerable mothflight could be the result of a moving in of impregnated female moths from f.e. nearby plots.

Mode of action:
The rubber lures are treated with the pheromone of the female insects. The pheromone attracts the male insects of the same species even up to a distance of about one hundered meters (depending on the wind direction and speed).

Instrucions for use:
The trap itself has been manufactured from a durable plastic material. The results of several years trials with this material have shown it to have a good durability under different weather conditions. The glue inserts are covered with a spezial glue that retains its sticky properties even under variations in temperature. Its advisable to clean the trap with each control of insects that will stick to the trap to keep the whole glue insert fully functional. If highty stained replace the glue insert. The attractant lure is fixed inside the trap with a wire. The lure is a special rubber body which dispenses the pheromones slowly. In areas of under one hectar one trap will suffice to control the moth population. The trap should be put up hanging freely downwind facing eye-level either in the treetop or among the grapes. The trap’s openings must not be covered by branches or leaves. Hide the trap from direct daylight so prevent the pheromones from volatilizing ahead of time.
A lure has an average effective period (under normal weather conditions) or about 6 - 8 weeks. In case of severel generations of moths per year the lures have to be replaced. Replacement lures and glue inserts can be ordered at TEMMEN GMBH any time.
In orchards with an area of more than one ha an increase of traps becomes necessary. The traps should be put at a minimum distance of 50 m and in mainly in centers of infestation of a facility. Traps for different insect species must be put up at least 10 m away from each other. When reusing the trap casing, only replace the lure with a new lure of the same kind. If not a mixing of catches could take place, which complicates the catch analysis.

Term to put up the trap:
It is recommended to put up the trap before the beginning of the moth season. For a number of species, such as the Codling moth, Grapevine moth and the Summer fruit tortrix the season starts already at the end of april up to the middle of may (For more informations contact your local plant protection service).

Evaluation of the trap:
The traps must be checked every second or third day. The number of trapped moths should be noted onto the assessment sheet (assessment sheets are included). For the accurate assessment of the catch the dating of the moth flight peak is of highest importance. After the moth flight peak is reached the mating starts and is followed a few days later by the egg deposition. Approximately 8-12 days later the larvae hatch and immediately try to penetrate the fruits. If the larvae try to escape directly into the young fruits any spray treatments will be successless. It is very important to start pest control measures exactly during the time of egg deposition. If a new moth flight peak becomes apparent a further treatment has to follow at the moment of egg deposition. Observations of these principles should allow the grower to time the schedule for a efficient and economical treatment.