Journals / Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2018 / Cilt: 8 - Sayı: 3
Larvicidal Effect of Two Artemisia Essential Oils to The Pine Processionary Moth, Thaumetopoea pityocampa (Denis & Schiffermuller) (Lepidoptera: Thaumetopoeidae)
- Pages
- 63–70
- DOI
- —
Abstract
The pine processionary moth, Taumetopoea pityocampa (Denis & Schiffermüller) (Lepidoptera:Thaumetopoeidae) is one of the most dentrimental insects found in the forestry areas of Turkey and World. Manymethods have been used to control this pest up to now. But, the problem is still going on. The objective of this studyis to determine larvicidal effects of essential oils obtained from Artemisia santanicum L. and Artemisia absinthiumL. on the L1, L2, L3, L4 and L5 stages of T. pityocampa in laboratory conditions. In order to test the toxicity of theoils on larval stages of T. pityocampa, 10 larvae were placed in each Petri dishes (9 × 1.5 cm). After that eachdose of essential oils (10, 15 and 20 μL petri-1) were sprayed on all the instar larvae of T. pityocampa in the petridishes, 4-10 g amounts fresh needles of (red pine) Pinus brutia Ten. were placed to feed the larvae. Petri disheswere covered with parafilm paper by closing. All tests carried out at 25ºC (±1), 65% (±5) relative humidity and14/10 h light/dark photoperiod in laboratory conditions. The sterile water + etanol as control and Dimilin@ 25 WP,a commercial insecticide (%25 Diflubenzuron) as positive control were used. All the tests were made in triplicate.After the exposure, mortality of the larvae was recorded at 12, 24, 36 and 48 h. The toxicity degrees were foundto be variable ranging from 6.66 to 100% mortality. The results show that two plant essential oils have larvicidaleffect on the five instar larvae of T. pityocampa in comparison with controls and can be used to control against T.pityocampa larvae populations.
Özet
Çam Keseböceği (Taumetopoea pityocampa (Denis & Schiffermüller) (Lepidoptera: Thaumetopoeidae)),