Ibraheem Saqr(1) and Suhair Ghalia*(1)
(1). Department of plant protection, Faculty of Agriculture, Tishreen University, Latakia, Syria.
(*Corresponding author: Eng. Suhair Ghalia. Email: suhairm.1973@gmail.com).
Received: 30/05/2018 Accepted: 3/10/2018
Abstract
Biological experiments were done under the conditions of Plant Protection Laboratory, Faculty of Agriculture, Tishreen University, to show the possibility of increasing the efficacy of the natural plant extracts on the T.urticae by mixing them with a half dose of synthesis pesticide which recommended, to decrease of the amount of pesticides which are used and spread in the environment, and to decrease the economic cost and the environmental pollution. A mixed mother extracts were used of leaves of six plant species viz. Melia azedarach, Smilax aspera, Styrax officinalis, Eucalyptus camaldulensis, Ecbalium elaterium and Lantana camara, with half dose which were recommended of six synthesis pesticides viz. Neoron, Ortus, Nissorun Vertimec, Talastar and Magister. Demodulations of extracts were done by dipping the phaseuloues leaves disk in the mixed solutions to treat the individuals. The mixed Neoron, Talastar, Vertimec and Magister had achieved a good effect to the efficiency of the extracts and the maximum value reached 100% or close to max in many cases particularly with Smilax aspera, Styrax officinalis and Melia azedarach extracts. The differences between mortality ratio had become high between most of the mixed solutions and the mother solution extracts, and also between most of the tested compounds and mixed extracts with Ortus compound which had low impact with the plant extracts.
Key words: Plant extracts, Pesticides, T. urticae, Leaf disk.
Full Paper in Arabic: PDF