Monitoring the appearance and possibility for prevention of the apple sawfly in Croatia
The apple sawfly Hoplocampa testudinea Klug has recently become a widespread pest in Croatian apple orchards. It causes severe damage in the blooming period due to the fact that infested fruit fall off.This article shows results collected over three years of field research on trap catches of sawflies, the period of laying eggs, the appearance of larvae and detection of damage. In the climate of northwestern Croatia, adult sawfly appear in April during the blooming period of the early apple variety of Idared.By monitoring temperatures from January 1, adults were detected when the thermal constant reached 210 day-degrees. Our observations showed that the larvae emerged when the sum of thermal constants reached ca. 110 day-degrees.The investigation of effective control strategies with insecticides showed high efficacy of thiametoxam (Actara), imidacloprid (Confidor), thiacloprid (Calypso) and betacyfluthrin + oxydemeton-methyl (Enduro) and lower efficacy of phosalone (Zolone), chlorpyrifos-methyl (Reldan), and lambda cyhalothrin (Karate).
Evaluation of temperature sum models and timing of Quassia amara (Simaroubaceae) wood-chip extract to control apple sawfly (Hoplocampa testudinea Klug) in Sweden
Apple sawfly (Hoplocampa testudinea Klug) is a serious pest in European organic apple production. They hatch during a short period only, making correct timing of control measures crucial. Swedish organic growers have requested a strategy for optimal timing of the Quassia amara (Simaroubaceae) extract against the apple sawfly. The aim of this study was, therefore, to develop methods to predict the timing of Q. amara control in Sweden. A temperature sum model for timely placement of monitoring or mass-trapping sticky traps was validated for Swedish conditions. The average emergence of sawflies occurred at 169 degree days (SD = 20) counted from March 15 (threshold temperature 4 °C). The difference in emergence from existing first flight model of average and maximum 9 and 39 degree days (1 and 9 calendar days) was found acceptable. Accumulated oviposition of 85 % at full bloom (BBCH 65) suggests that mass trapping and monitoring could stop at this time. This is supported by a tendency of decreased trap catches during that period. Three application times for Q. amara were compared: (A) at petal fall (BBCH 67), (B) at a date calculated using female trap catch numbers and temperature sums, and (C) prior to peak egg hatch observed in the field. All treatments resulted in significantly lower percentage of damaged apples compared to the unsprayed control, with significantly less damage (1.3 %) in plots treated according to method (B). The results provide information on adult phenology and methods that could be used to determine timing of mass trapping and insecticide application against the apple sawfly.
Turkish Political Culture and Civil Society : an Unsettling Coupling?
This paper attempts to analyze Turkish politics in the post-1980 period with a special reference to the relationship among the state elites, political elites and societal actors and its impact on the constitution of civil society in Turkey. After the 1980 military intervention, the political and economic realms of Turkey witnessed a relative degree of liberalization through Uzal's neo-liberal policies. The January 24 economic decisions paved the way for economic liberalization as well as letting new economic and societal actors emerge. These new economic actors were different from the prevailing economic actors which used to enjoy having a considerable amount of opportunity spaces in the economic sphere. Together with the Uzal governments, Islamic segments started to become powerful in both political and economic realms. This paper analyses the chief traits of Turkish politics and economics and their impact upon civil society aftermath the 1980 coup in general, and the relationship and/or interaction among the state elites, political elites and societal actors in particular. The engagements of newly-emerging societal and economic actors into Turkish political scene and the challenge of these actors against the so-called 'Kemalist-Republican' elites are also illustrated in the paper. Moreover, state-Islam interaction, politics-Islam interaction as well as Kemalism-newly-emerging societal and economic actors interaction will be studied with a special emphasis to the post-1980 period. The major argument of the paper is that, in Turkey, both civil society issues and political issues reveal outcomes which are primarily shaped by the nature of the relationship between state elites and political elites in general and by Turkish political culture in particular.