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Shaalan,, H., El-Dabi, R., Reyad, N. (2007). EFFECT OF SOME BIOTIC FACTORS, BIOTIC FACTORS AND SOME MATERIALS ON THE MITE, TETRANYCHUS URTICAE KOCH ON SOYBEAN AT QALUBIYA GOVERNORATE. Journal of Plant Protection and Pathology, 32(4), 3095-3104. doi: 10.21608/jppp.2007.219495
H. S. Shaalan,; Roda M. El-Dabi; Nagla F. Reyad. "EFFECT OF SOME BIOTIC FACTORS, BIOTIC FACTORS AND SOME MATERIALS ON THE MITE, TETRANYCHUS URTICAE KOCH ON SOYBEAN AT QALUBIYA GOVERNORATE". Journal of Plant Protection and Pathology, 32, 4, 2007, 3095-3104. doi: 10.21608/jppp.2007.219495
Shaalan,, H., El-Dabi, R., Reyad, N. (2007). 'EFFECT OF SOME BIOTIC FACTORS, BIOTIC FACTORS AND SOME MATERIALS ON THE MITE, TETRANYCHUS URTICAE KOCH ON SOYBEAN AT QALUBIYA GOVERNORATE', Journal of Plant Protection and Pathology, 32(4), pp. 3095-3104. doi: 10.21608/jppp.2007.219495
Shaalan,, H., El-Dabi, R., Reyad, N. EFFECT OF SOME BIOTIC FACTORS, BIOTIC FACTORS AND SOME MATERIALS ON THE MITE, TETRANYCHUS URTICAE KOCH ON SOYBEAN AT QALUBIYA GOVERNORATE. Journal of Plant Protection and Pathology, 2007; 32(4): 3095-3104. doi: 10.21608/jppp.2007.219495

EFFECT OF SOME BIOTIC FACTORS, BIOTIC FACTORS AND SOME MATERIALS ON THE MITE, TETRANYCHUS URTICAE KOCH ON SOYBEAN AT QALUBIYA GOVERNORATE

Article 9, Volume 32, Issue 4, April 2007, Page 3095-3104  XML PDF (515.78 K)
Document Type: Original Article
DOI: 10.21608/jppp.2007.219495
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Authors
H. S. Shaalan,; Roda M. El-Dabi; Nagla F. Reyad
PLANT PROTECTION RESEARCH INSTITUTE, AGRICULTURE RESEARCH CENTER, GIZA, EGYPT
Abstract
Experiments were conducted at Benha, Qalubiya Governorate on soybean plants during 2005 and 2006 seasons to study the population fluctuation of the two spotted spider mite, Tetranychus urticae Koch in relation to common associated predators (Coccinella undecimpunctata L. and Orius albidipennis Reut) and some prevailing climatic factors (daily mean temperature and daily mean relative humidity). As well the effect of some materials against T. urticae during two seasons. The obtained data indicated the following:
1. The population of T. urticae reached its maximum on July 5th, showing 484.8 individuals/30 leaves during 2005 season, while during season 2006 the maximum level occurred on July 31st (488.5 individuals/30 leaves)
2. The combined effect of the weekly mean of predator's population, daily mean temperature and daily mean relative humidity was responsible for 87.7 and 81.5% of changes in the population of T. urticae during two seasons, respectively.

3.  The various materials were found to be very effective for controlling of T. urticae was as followings during 2005 and 2006  seasons:

    Selecron < Super Masrona < Nat 1< Biofly.
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