Zeytin hastalık ve zararlıları ile doğal mücadele

[Oğuz Alper]

Sn.Meyveli Tepe;
Eğer vaktiniz olursa bu yayını incelemenizi isterim.Zeytin yetiştiricilerin dikkatine
http://www.springerlink.com/content/d473436p3g33v561/


Fedai Erler1

(1) Plant Protection Department, Faculty of Agriculture, Akdeniz University, 07070 Antalya, Turkey

Received: 14 September 2003 Accepted: 11 February 2004

Abstract A botanical natural product,AkseBio2, was evaluated under laboratory conditions for its oviposition deterrent, ovicidal and larvicidal (nymphicidal) effects against the pear psyllaCacopsylla pyri (L.) (Hemiptera: Psyllidae). The product exhibited a strong oviposition deterrent effect for winterform and summerform females and caused a reduction in the total number of eggs laid in both choice and no-choice assays. Significant mortalities in freshly laid eggs (0–48 h) and various nymphal stages of the pest were recorded in toxicity assays. At a concentration of 0.1% (formulation), the highest biological activity of the product was recorded against the young (1st and 2nd) nymphal stages (up to 87.4% mortality) in comparison with the other biological stages of the pest. It was less active against the older (3rd-5th) nymphs, causing 62.1% mortality at the same concentration. In assays with non-target organisms, a significant negative effect was not observed. There were no significant changes on treated plants up to 7 days after treatment in any trial, nor was there any phytotoxicity on plant tissue as a result ofAkseBio2 treatments. The results suggest that the product can be used in psylla control instead of synthetic insecticides and may serve as an integrated pest management (IPM) component in pear orchards.
Key words AkseBio2 - botanical products - Cacopsylla pyri - oviposition deterrent - ovicidal - larvicidal - Turkey

http://www.phytoparasitica.org posting July 14, 2004.