دراسة سمية باستخدام فرمون التجمع الجنسي في مكافحة الصرصر الامريكي Periplaneta americana L.(Blattodea : Blattidae)

Atoxicity study by using sexual Aggregation pheromone to control the Periplaneta americana (L.) (Blattodea-Blattidae)

The work has shown the distribution of three species of cockroachs in region Karbalaa Governorate. Which are  Periplanet americana. Blattella germanica, and Supella supellectilum. The Periplaneta americana is speared in Fariha area , Indian, the center of Karbala, Al Husseiniya and the Free area as 68%,85% , 80% , 86%, 91% respectively.

The results indicated that the focus to collect adult and reconstruction old nymph was 2 g feces / 25 ml hexane, however, the optimum way to attract reconstruction of early nymph is by 2.5 g feces / 25 ml hexane. The percentage of attraction for adults and early and old stage of nymphs from the feces extract each as 93.3%, 63.3%, 86.6%, respectively.

Additionally, the results determined the effectiveness of pheromone material and found out that it can be effective without proper storage. The attractions rates did not differ between the first day and fifteenth, where it was 18.3, 16.6, respectively, and that the moral decline occurred after the fifteenth day. However, the effectiveness of pheromone extract with proper storage continued for 105 days.

In addition, the results indicated that all the insect pheromone launches the roles effectively attracts all gathered whimsical at different rates and the proportions of the adult combination and reconstruction late nymph convergent where indicated no significant differences between them compared to the early ages nymph.

Furthermore, the shelter test results demonstrated that the U.S cockroach prefers to gather in shelters made ​​of wood (opposite) compared to other shelters made ​​from wood (fiber), plastic, metal and cardboard.

The results illustrated that the nature of the surfaces that will be treated by the extract Pheromone concentrate! have an impact on the duration of the lifespan. It was found that when spraying surfaces made of concrete the attraction effect remains continuous until 20 days compared with four days when spraying it on a ceramic surface.

As well as, the results indicated that the treatment of adult food of the Cockroaches by pesticide Maxforce and organizers of the insects growth Apllaud and Neem oil with different concentrations demonstrated that there is an inverse relationship between the concentrations used and the time required to kill the cockroaches.

Therefore, the outcomes confirmed that adding pheromone extract to toxic substances (pesticides) has big effect on reducing the amount of toxic material that will dissolve and affect environment as well as reduce the time that is needed to kill the cockroaches.