TY  - JOUR
TI  - Insecticidal efficacy of local diatomaceous earths against adult and larvae of Tenebrio molitor L., 1758 (Coleoptera: Tenebrionidae)
AB  - In this study, insecticidal activity of diatomaceous earths (DE) of different particle size (Turco 000, 004 and 020) obtained from domestic sources in Turkey were tested against Tenebrio molitor L., 1758 (Coleoptera: Tenebrionidae)larvae and adults under laboratory conditions. DE were tested against larvae and adults of T. molitor at four different rates (0, 0.001, 0.002, 0.003 and 0.004 mg/cm2), and LC50 and LC90 values were calculated. Turco 000 grade DE withthe smallest particle size had 100% efficacy at all rates against the adults at 60 h, and after 48 h, LC50 and LC90 values were 0.006 and 0.019 g/cm2, respectively. After 48 h treatment, the LC50 and LC90 values for Turco 004 were 0.013and 0.022 g/cm2, respectively, whereas they were 0.022 and 0.041 g/cm2 with Turco 020, respectively. The DE applied to the larvae had activity in varying proportions. LC50 values were 0.014, 0.034 and 0.032 g/cm2 after 72 h for Turco000, 004 and 020 , respectively. LC90 values were 0.053, 0.089 and 0.075 g/cm2, respectively. The results obtained in this study are promising for control of this pest with local DE.
AU  - Ertürk, Sait
AU  - ATAY, Turgut
AU  - ALKAN, Mustafa Beyazıt
AU  - ÇAĞLAYAN, Ayşegül
DO  - 10.16970/entoted.550954
PY  - 2019
JO  - Türkiye Entomoloji Dergisi
VL  - 43
IS  - 3
SN  - 1010-6960
SP  - 347
EP  - 354
DB  - TRDizin
UR  - http://search/yayin/detay/406633
ER  -