İki farklı bitki ekstraktının Yeşil şeftali yaprakbiti [(Myzus (N.) persicae Sulzer) (Hemiptera: Aphididae)]’ne insektisit etkileri üzerinde araştırmalar
Investigations on the effects of two different  plant extracts on the Green peach aphid [(<em>Myzus (N.) persicae </em>Sulzer) (Hemiptera:  Aphididae)]
Yazar: Erdoğan, Pervin; Yıldırım, Ayşegül
Dergi: Bitki Koruma Bülteni, Vol. 53 No. 1, 2013
Anahtar kelimeler: Insecticide effect, Hyoscyamus niger, Achillea wilhelmsii, Extract, Green peach aphid ; İnsektisit etki, Hyoscyamus niger, Achillea wilhelmsii, ekstrakt, Yeşil şeftali yaprakbiti

Green peach aphid [(Myzus (N.) persicae Sulzer) (Hem.:  Aphididae)] is a very important pest worldwide, causing serious damage to vegetables, flowers  and fruit crops. In recent years broad spectrum insecticides have been used to  control this pest in Turkey. Control is difficult mainly due to resistance to  conventional pesticides. The use of plant extracts as alternative pesticides  for control of insects is becoming important. A great deal of research has been  carried out in this area in recent years. The efficacy of pesticides extracted  from two different plants such as Hyoscyamus niger L. and Achillea wilhelmsii C.  were tested as alternative insecticides. The effects of extracts with ethanol  obtained from two different plants on M. (N.) persicae were investigated. Bioassays were tested by two different methods determine the  effects of varying concentrations. Experiments were performed using 3cm  diameter leaf disk from unsparayed Raphanus sativus L. The effects of four concentrations of extract  %1, 3, 6, 12 were studied. All of experiments were repeated 10 times. As a  result of the investigation, in leaf  dipping method; the extract of A. wilhelmsii 12% concentration showed the highest mortality  in nymph and adult stages. The mortality of nymphs and adults at the same  concentrations were 83.81% and 80.00%, respectively. The mortality of nymphs  and adults were 71.64 and 65.00% respectively within the same concentration  extract of H. niger.  There was no significant difference on the mortality between leaf dipping and  direct leaf spraying method when compared.

Green peach aphid [(Myzus (N.) persicae Sulzer) (Hem.:  Aphididae)] is a very important pest worldwide, causing serious damage to vegetables, flowers  and fruit crops. In recent years broad spectrum insecticides have been used to  control this pest in Turkey. Control is difficult mainly due to resistance to  conventional pesticides. The use of plant extracts as alternative pesticides  for control of insects is becoming important. A great deal of research has been  carried out in this area in recent years. The efficacy of pesticides extracted  from two different plants such as Hyoscyamus niger L. and Achillea wilhelmsii C.  were tested as alternative insecticides. The effects of extracts with ethanol  obtained from two different plants on M. (N.) persicae were investigated. Bioassays were tested by two different methods determine the  effects of varying concentrations. Experiments were performed using 3cm  diameter leaf disk from unsparayed Raphanus sativus L. The effects of four concentrations of extract  %1, 3, 6, 12 were studied. All of experiments were repeated 10 times. As a  result of the investigation, in leaf  dipping method; the extract of A. wilhelmsii 12% concentration showed the highest mortality  in nymph and adult stages. The mortality of nymphs and adults at the same  concentrations were 83.81% and 80.00%, respectively. The mortality of nymphs  and adults were 71.64 and 65.00% respectively within the same concentration  extract of H. niger.  There was no significant difference on the mortality between leaf dipping and  direct leaf spraying method when compared.