İnanç Özgen

Highly effective bacterial agents against Cimbex quadrimaculatus (Hymenoptera: Cimbicidae): isolation of bacteria and their insecticidal activities

Cimbex quadrimaculatus (Hymenoptera: Cimbicidae) is one of the serious pests of almonds in Turkey and worldwide. Since there is no effective control application against this pest, it has been a serious problem up to now. Therefore, we aimed to find an effective bacterium that can be utilized as a biocontrol agent against C. quadrimaculatus in pest management. We isolated seven bacteria from dead and live C. quadrimaculatus larvae, and evaluated the larvicidal potency of all isolates on the respective pest. Based on the morphological, physiological, biochemical and molecular properties (partial sequence of 16S rRNA gene), the isolates were identified to be Bacillus safensis (CQ1), Bacillus subtilis (CQ2), Bacillus tequilensis (CQ3), Enterobacter sp. (CQ4), Kurthia gibsonii (CQ5), Staphylococcus sp. (CQ6) and Staphylococcus sciuri (CQ7). The results of the larvicidal activities of these isolates indicated that the mortality value obtained from all treatments changed from 58 to 100xa0%, and reached 100xa0% with B. safensis (CQ1) and B. subtilis (CQ2) on the 3rd instar larvae within 10xa0days of application of 1.89xa0×xa0109xa0cfu/mL bacterial concentration at 25xa0°C under laboratory conditions. Findings from this study indicate that these isolates appear to be a promising biocontrol agent for C. quadrimaculatus.

Listrognathus mactator (Thunberg, 1824) (Hymenoptera: Ichneumonidae) — A New Recorded Parasitoid of Cimbex Quadrimaculatus (O. F. Müller, 1766) (Hymenoptera: Cimbicidae) in Turkey

ABSTRACT: n Listrognathus mactator (Thunberg, 1824) (Hymenoptera: Ichneumonidae) was determined as a larva-pupa parasitoid of the almond pest, Cimbex quadrimaculatus (O. F. Müller, 1766) (Hymenoptera: Cimbicidae). The parasitoid is also recorded from Turkey for the first time.

A new species of the Agriotes nuceus species group from Turkey.

Abstract A new Elateridae species, Agriotes longipronotum n. sp. (Coleoptera: Elateridae: Elaterinae: Agriotini), is described from Siirt province, Turkey. Photographs of the imago and the aedeagus, and drawings of the aedeagus of the new species, A. sameki , A. bulgaricus , and A. rahmei are given. A rearranged diagnostic key of all Turkish species of nuceus -group is given. The new species is discussed in relation with closely related species. The species of the Agriotes nuceus -group from Turkey are listed, and their distributions are given.

A new species of the genus Entomogonus Solier, 1848 (Coleoptera: Tenebrionidae) from Eastern Anatolia

A new species Entomogonus (Delonurops) doguanatolicus Nabozhenko, sp.xa0n. (Coleoptera: Tenebrionidae) is described from Diyarbakır (Turkey). It differs from all members of the subgenus Delonurops Reitter, 1922 in the flattened lateral sides of pronotum. The newly described species is similar to E. clavimanus Reitter, 1903, E. makovskyi Nabozhenko et Tichý, 2011 and E. bialookii Nabozhenko et Tichý, 2011 from which it also differs by a more robust body, structure of pro- and mesotibiae, pro- and mesotarsi and elytral apex. A key to species (based on males) of the subgenus Delonurops of Eastern Anatolia is given.

A New Cherry (Prunus avium) Pest in Turkey: Omaloplia labrata (Burmeister) (Coleoptera: Scarabaeidae: Sericini)

ABSTRACT: This study results from observations in cherry gardens in Elazığ (Turkey: Eastern Anatolia) during 2015 and 2016. In previous studies Omaloplia labrata (Burmeister, 1855) was found feeding on leaf epidermis of leaves starting from the uppermost and youngest shoots of the growth cone, causing significant damage. This pest damages trees from the first week of June to early July, and may cause significant damage if control measures are not taken. This study is the first record of this species on cherry and harming cherry trees.

Malatya ili kayısı alanlarında zararlı Sphaerolecanium prunastri (Boyer de Fonscolombe, 1834) (Hemiptera: Coccidae) (Erik koşnili)'nin yayılış alanları, bulaşma oranları ve doğal düşmanlarının belirlenmesi

The study has been carried out by the technique of working in land and making observations performed as biweekly periods in march and november, with the aim of determining the distribution, infestation and natural enemies of Sphaerolecanium prunastri (Boyer de Fonscolombe, 1834) (Hemiptera: Coccidae) in the province of Malatya between the years of 2003 and 2004. In consequence of the study, it was determined that the S. prunastri was distributed in the Center, in the districts of Battalgazi, Kale Yazihan and Yesilyurt, which are located in the province of Malatya. In addition, it was detected that the infections higher in the district of Yazihan than it is in the other sampling areas. In the scope of the study which has been carried out in order to determine the natural enemies of the above mentioned pest, the Pachyneuron muscarum (L.,1758), Coccophagus lycimna (Walker,1839), Metaphycus sp., Exochomus quadripustulatus (L.,1758), Cybocephalus fodori minor (Endrody & Younga), Chrysopa sp. species and also Metaphycus sp. have been identified as the natural enemies of the pest.