This project has been conducted and executed by the Atatürk Central Horticultural Center Research Instıtute, with the cooperation of Organic Produce Producers and two Organic Pesticide Producers (V.I.T. and Akane Dis Ticaret A.S.), between the years 1999-2002. Research trial applications and executions were conducted on land parcels allocated for research within the compounds of the Atatürk Central Horticultural Center Research Instıtute located in Yalova, Turkey and within the organic production land sites of Batem, located in Iznik and Cakirca, Turkey. Within the confines and boundaries of these above-mentioned sites, Cherry, Olives, Strawberry and Peaches were produced as organic produce within the scope of this project. Soil and leaf sample batches were taken from these research sites, prior to start of trials; analysis were conducted on these sample batches for the purpose of determining the beneficial and nutritional elements existing within; and based on the outcome and results of these soil and leaf sample batch analysis-dosage and application programs were applied accordingly. Control of diseases has been executed as per the recommendations in the governing Regulations and Guidelines For Organic Farming. The second phase of the project entailed execution of biological effectiveness trials. Application of organic based pesticides (Neemazal T/S and Bıoact-TN) for the control of some important and main pests were implemented, and research was conducted in the following categories: Apple (Aphis pomi (Deg); Peach (Cydia molesta) Busck ; Cherry (Rhagolethis cerasi) L; Strawberry (Tetranychus cinnabarinus) Boisd.; Olive (Prays oleae) Bern and (Bactrocera oleae) Gmel. Bu proje Atatürk Bahce Kültürleri Merkez Araştırma Enstitüsi, organik tarım üreticileri ve organik tarım ilac üretiçileri (V.İ.T ve Akane Dış.Tic.AŞ) işbirligi ile 1999-2002 yılları arasında, Atatürk Bahce Kültürleri Merkez Araştırma Enstitüsi deneme parselleri ile Batem organik tarım üretim alanlarında (İznik, Cakırca) yürütülmüştür. Deneme alanı içersinde bulunan Kiraz, Zeytin, Çilek ve Şeftali de ürünler organik olarak yetiştirilmiş, deneme önçesi, deneme alanlarından toprak ve yaprak örnekleri alınarak, bitki besin maddeleri yönünden analizleri yapılmış, analiz sonuclarına göre beslenme programları uygulanmıştır. Hastalıklar ile müçadelede organik tarım yönetmeliginin önerdigi preparatlar kullanılarak müçadele yapılmıştır. Projenin ikinçi safhası, organik kökenli pestisitlerin (Neemazal T/S ve Bioact-T) bazı önemli ana zararlılara karşı; Elmada Aphis pomi (Deg), şeftalide Cydia molesta Busck, Kirazda Rhagolethis cerasi L, çilekte Tetranychus cinnabarinus (Boisd.), zeytinde Prays oleae Bern ve Bactrocera oleae (Gmel) biyolojik etkinlikleri araştırılmştır.