Tetranychus urticae Koch.

LC50

ppmppm

LC50ppmppm

Tetranychus urticae Koch. (Acarina: Tetranychidae)

(Bolland et al. 1998)

(Baker and Tuttle. 1994)

Tetranychus urticae

(Kimia

Sabzavar Company, 2010)

Palizin

Sirinol

Water soluble concentrate

(Kimia Sabzavar Company, 2010)

Baker

(Potter Precision Spray Tower, 2000)PSI

Pri-Probit(Sakuma, 1998)

(Abbott, 1925)

SAS(SAS Institurte, 2001)

LC50LC90

LC50ppm

ppm

LC90

ppm

Confidence Limits

LC50ppmppm

LC50

2

LC50

CL1

LC50

LC50

ppm(AI)

LC90

ppm(AI)

y + x

y + x

y= + x

y= + x

1. Confidence limits

p 0.01

(±SE)T. urticae

p 0.01

p 0.01

(±SE)T. urticae

p 0.01

(±SE)

Cp 0.01

(±SE)

Cp 0.01

(±SE)C

p

0.01

Abbott, W.S. 1925. A method of computing the effectiveness of an insecticide. J. Econ. Entomol.; 18 : 265-267.

Baker, E.W. and D.M. Tuttle. 1994. A Guide to the Spider Mites (Tetranychidae) of the United States. Indira Publishing House: West Bloomfield, MI, 347pp.

Bolland, H. R., J. Gutierrez and C.H.W. Flechtmann. 1998. World Catalogue of the spider mite family (Acari: Tetranychidae). Brill-Leiden-Boston-Koln, Netherlands. 392 pp.

Kimia Sabzavar Company. 2010. Available at www.kimiasabzavar.com.

Potter Precision Spray Tower. 2000. Burkard Manufacturing Co. Ltd., (http://pollenuk.worc.ac.uk/Burkard/Default.html)

Sakuma, M. 1998. Probit analysis of preference data. Appl. Entomol. Zool. 33: 339-347.

SAS Institute Inc. 2001., SAS Campus Drive, Cary, North Carolina 27513

A survey on the effects of Palizin and Sirinol

on two spotted spider mite Tetranychus urticae Koch.

Qodrat Sabahi

Assistant Professor, Plant Protection Department, Faculty of Agriculture,

University of Tehran, Karaj 31587, Iran

Abstract

Two spotted spider mite, Tetranychus urticae is a serious pest which collected from more than 1000 species of plants and can create severe losses in agricultural products. Multiple generations and a wide host range causing rapid resistance of this pest to pesticides. Therefore it is inevitable to make new compounds for its control. In this study, two new compounds with plant origin, Sirinol and Palizin, manufactured by Kimia Sabzavar Co. Iran, were examined on different stages of mite. The LC50 related to Sirinol and Palizin were 1988.9 and 1936.7 ppm for nymphal stages and 2358.8 and 1708.0 ppm for adult stage, respectively. Palizin at 3000 ppm caused 66.83 % mortality in nimphal stage and 76.12% mortality in adult stage, respectively. Palizin also showed ovicidal activity. This compound could prevent the hatching of eggs in more than 23% of samples at 2500 ppm.

Key words: Palizin, Sirinol, botanicals, two spotted spider mite, bioassay

This document was created with Win2PDF available at http://www.daneprairie.com.The unregistered version of Win2PDF is for evaluation or non-commercial use only.