Mechanical control and damage of Polydrusus ponticus Faust (Coleoptera: Curculionidae) on apricot in Malatya province, Turkey


ÖZTÜRK N., ULUSOY M. R.

TURKIYE ENTOMOLOJI DERGISI-TURKISH JOURNAL OF ENTOMOLOGY, cilt.38, ss.61-69, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 38 Konu: 1
  • Basım Tarihi: 2014
  • Doi Numarası: 10.16970/ted.81362
  • Dergi Adı: TURKIYE ENTOMOLOJI DERGISI-TURKISH JOURNAL OF ENTOMOLOGY
  • Sayfa Sayısı: ss.61-69

Özet

This study was conducted in apricot orchards in Dogansehir, Yesilyurt, Battalgazi and Kale district of Malatya in 2010-2011. Polydrusus ponticus Faust (Coleoptera: Curculionidae) was identified in Turkey in previous years but there wasn't a detailed study on the pest since then. This study aimed to determine the damage type, damage rate and the effectiveness of mechanical control of the pest. Visual control method was used to define the damage type. In order to reveal the damage rate and a total of 1000 fruits on 10 trees in each orchard were rated as damaged or clean. Randomized block experimental design was used for mechanical control trail with 2 characters and 6 replications. The results were evaluated by monitoring 250 fruits per tree.

This study was conducted in apricot orchards in Dogansehir, Yesilyurt, Battalgazi and Kale district of Malatya in 2010-2011. Polydrusus ponticus Faust (Coleoptera: Curculionidae) was identified in Turkey in previous years but there wasn't a detailed study on the pest since then. This study aimed to determine the damage type, damage rate and the effectiveness of mechanical control of the pest. Visual control method was used to define the damage type. In order to reveal the damage rate and a total of 1000 fruits on 10 trees in each orchard were rated as damaged or clean. Randomized block experimental design was used for mechanical control trail with 2 characters and 6 replications. The results were evaluated by monitoring 250 fruits per tree. 

As a result, it is determined that P. ponticus adults causes crop losses by feeding on buds, leaves and shoots while larvae causes losses by feeding on apricot seed. It was monitored that only one larvae feeds in a single fruit. It was also monitored that the damaged fruit either dropped off before maturation or was hang off on the tree. It was determined that the average damage rate of P. ponticus was 5.8 % in 2010, 5.9 % in 2011 and 5.9 % as the average of the two years. The effectiveness of the mechanical control against P. ponticus was 95.5 % in an orchard in Dogansehir in 2010 while 95.7 % in Battalgazi. The rates were 95.8 % and 95.6 % respectively in the second year of the trial. According to these results, average efficacy rate of siliconized fiber for the control of P. ponticus was found 95.6 %. Siliconized fiber application was determined as an alternative to chemical control.