Fight against (Thaumetopoea pityocampa (Schiff. )) by injection of petroleum into the bags

11 FIGHT AGAINST (Thaumetopoea pityocampa (Schiff.)) BY INJECTION OF PETROLEUM INTO THE BAGS (M.Sc Thesis) Ahmet DUYAR GAZI UNIVERSITY INSTUTE OF SCIENCE AND TECHNOLOGY August 2003 ABSTRACT Thaumetopoea pityocampa (Schiff.) is one of the important insect species causing damages in pines trees at Mediterranean climate. To control pest, mechanical, chemical and biological methods were used. One of the chemical methods by, injection of petroleum into the insect bag, which is used in this study. The objectives of this study were to investatigate the optimum dosage, type of injection and type of petroleum to obtain the highest success against the insect. Also, this method compared with the traditional collect no method in terms of timing, economy, application activity, safety and health hazards. The study was conducted in heavily insect damaged Pinus brutia and Pinus nigra stands by insect. Diesel oil, kerosene and benzine mixed with 25% diesel oil were applied to bags with l,5cc, 3cc and 5cc dosages. The sensitive insect bag injection tool was designed and used for petroleleum injection. At the end of application, it is concluded that benzine mixed with 25% diesel oil was the most effective production; 5cc was the most effective dosage. Inject petroleum method was found to be four times cheaper than mechanical method. Science Code : 502.02.01 Key Words : Pine processionary Moth, Petroleum, Injection Page Number : 48 Adviser : ProfAssist Sabri ÜNAL