This paper covers the palm (Palmae sp.) and date palm (Phoenix dactylifera) pests which were determined by studies conducted in Turkey between 1941 and 2006. In total 15 species have been found to date: 1 belonging to Coccidae, 9 to Diaspididae, 1 to Margarodidae and 2 to Pseudococcidae families of the order Homoptera and 1 species to Scarabaeidae and 1 to Curculionidae families of the order Coleoptera. Among these pests, red palm weevil (Rhynchophorus ferrugineus Olivier) has caused a great deal of damage in recent years.

Phoenix theophrasti is the only palm species native to Turkey and it exists in small numbers in only a few locations along the Mediterranean Coast. Other Phoenix species and other palms are mainly grown in Turkey for environmental and ornamental purposes in house gardens, public gardens, parks and as street plantings. The common usage of palms in landscaping highlights their economic importance for the country, especially in coastal tourism areas. Date palms grown in Turkey produce fruits which are small in size, of low nutritional value and with little sugar content due to insufficiently warm temperatures to ripen fruit. Adult date palm trees were imported into the country, mainly from Egypt, until 2005, when imports ceased to prevent further introduction of red palm weevil, Rhynchophorus ferrugineus, which has become a serious threat to Phoenix and other palms. The other major insect problem is red palm scale insect Phoenicococcus marlatti. Measures are being taken to control these two pests. The limiting of palm imports has stimulated seed propagation of palms within Turkey.

This study was conducted in two walnut orchards including Şebin, Yalova-4 and Sütyemez-2 with Şebin and Sütyemez-2 varieties in 2012 and 2013 in Central district of Kahramanmaraş province. The efficacy of the mating disruption technique was investigated by using dispensers loaded with "(E, E)-8,10-dodecadienol, n-dodecanol,ntetradecanol 50%, (Z)-11-tetradecenyl acetate 50%" pheromone for the management of Codling moth [Cydia pomonella L. (Lep.: Tortricidae)]. Trial was established as large parcel experimental design having two characters -mating disruption (MD) and control (NP, no pesticide) application. The population dynamics of the pest was monitored by sex attractant pheromone traps. The pheromone dispensers were applied at 1000 dispensers ha -1 (5 dispensers tree -1 ) and total 3000 dispensers were applied in the orchard. The dispensers were tied to different directions and to a suitable branch located at 1/3 top part of the tree. The emission amounts of dispensers were determined by weekly measuring of the weight of 10 dispensers, and the emission amount was 61 mg h -1 dispenser -1 in MD plot. Counts for fruit damage assessment was evaluated by inspecting 1000 fruits at harvest period. The average infestation rates were calculated as 5. respectively. As a result of this study, it was determined that the usage of 1000 dispensers ha -1 in walnut orchards can be used effectively as an alternative method instead of chemical control against C. pomonella for organic production and for integrated pest management.

Ağaç sarıkurdu, Zeuzera pyrina L. 1761 (Lepidoptera: Cossidae) larvaları, ana gövdede, kalın ve ince dallarda galeriler açarak konukçu bitkinin ölümüne neden olabilmektedir. Çiftleşmeyi engelleme yöntemi, kimyasal mücadeleye alternatif bir mücadele yöntemidir ve zararlı türün eşeysel feromonunun bahçeye yerleştirilmesiyle uygulanır. Bu çalışma, zeytin bahçelerinde Z. pyrina mücadelesinde ‘Çiftleşmeyi Engelleme (ÇE) tekniğinin etkinliğini belirlemeyi amaçlamıştır. Bu amaçla 2015 ve 2016 yıllarında Hatay ili Hassa ilçesinde bir zeytin bahçesinde Z. pyrina’nın Isonet-Z feromon yayıcıları hektara 360 adet olarak uygulanmıştır. İlaçsız bir bahçe kontrol olarak seçilmiştir. Feromon yayıcıları, her iki yılda da mayıs ayı ilk yarısında ağaçlara asılmıştır. Çiftleşmeyi engelleme tekniğinin etkinliğini değerlendirmek için; uygulamalı ve uygulamasız parsellerde gövde ve dallarda larva zararından kaynaklı özsuyu akıntısı ile larva beslenme pisliği görülen veya canlı larva bulunan ağaç sayısı belirlenmiştir. Ağaç sayısı üzerinden hesaplanan bulaşıklık oranlarının 2015 ve 2016 yıllarında sırasıyla ÇE parselinde %6 ve %10; kontrol parselinde %27 ve %22 olduğu ortaya konmuştur. Ön sayım ile kıyaslandığında, bulaşıklık oranlarında ilk yıl %90, ikinci yıl %84,37 lik bir azalma tespit edilmiştir. Buna göre ÇE metodunun yüzde etkisi yıllara göre sırasıyla %77,0 ve %54,6 olarak hesaplanmıştır.