Abdalla,, E., Barakat, A., El-Sayed, L., Badawy, H., Abdou, G. (2004). THE USE OF SOME RELATIVELY SAFE COMPOUNDS FOR THE CONTROL OF CITRUS LEAF MINER PHYLLOCNISTIS CITRELLA STAINT.. Journal of Plant Protection and Pathology, 29(4), 2053-2065. doi: 10.21608/jppp.2004.239529
E. F. Abdalla,; A. A. Barakat; l. E. El-Sayed; H. A. Badawy; G. Y. Abdou. "THE USE OF SOME RELATIVELY SAFE COMPOUNDS FOR THE CONTROL OF CITRUS LEAF MINER PHYLLOCNISTIS CITRELLA STAINT.". Journal of Plant Protection and Pathology, 29, 4, 2004, 2053-2065. doi: 10.21608/jppp.2004.239529
Abdalla,, E., Barakat, A., El-Sayed, L., Badawy, H., Abdou, G. (2004). 'THE USE OF SOME RELATIVELY SAFE COMPOUNDS FOR THE CONTROL OF CITRUS LEAF MINER PHYLLOCNISTIS CITRELLA STAINT.', Journal of Plant Protection and Pathology, 29(4), pp. 2053-2065. doi: 10.21608/jppp.2004.239529
Abdalla,, E., Barakat, A., El-Sayed, L., Badawy, H., Abdou, G. THE USE OF SOME RELATIVELY SAFE COMPOUNDS FOR THE CONTROL OF CITRUS LEAF MINER PHYLLOCNISTIS CITRELLA STAINT.. Journal of Plant Protection and Pathology, 2004; 29(4): 2053-2065. doi: 10.21608/jppp.2004.239529
THE USE OF SOME RELATIVELY SAFE COMPOUNDS FOR THE CONTROL OF CITRUS LEAF MINER PHYLLOCNISTIS CITRELLA STAINT.
1Plant Protection Department, National Research center.
2Econ. Entorno l. and Pestle. Department, Fac. Agric. Cairo uruv.
Abstract
The efficiency of eight compounds representing different chemical groups was evaluated against the Cilf1J8 lealrnlner P. curelt« larval population on navel orange trees. At Ihe recommended rates, the tested compounds suppressed the level of infestation to different degrees according 10 the nature 01 the compound, the rate of use and the lime elapsed after spraying.
As an average of the two sprays, three weeks each, A. cyhalothrin, as a potent pvrethroid. was tne most effective compound giving 73.7% reduclion, followed by the mixture of abarnectin of Kz-oil (71.5%) and than chlorpyrifos methyl (59.0%). This e'ioctive group was constcered as {he first category of the tested compounds. The second category Includes: Kz-ou. pyriproxifen • Kz-oll aM azatio. Toey oisplayed moderate eHects amounted to 47 , 44.7 and 43.0% reducLion in inlastabon IllrOligh the two sprays. respecOvely. The remaining products (ovrnevozine and oio- dux) may be regarded as ineffective i() reduc.ng the leafminer incidence under the prevailing experimental conditions.
The biore siduat activity of the tested compounds, even with the potent pyrethroid, did net exceed more than rwo weeks (for \he bosl cases). Thus, the frequent application would be necessary. particularly when non traditional compounds wers used.
The efficiency of the treatments was evaluated by visual estimation of Infested or non- jr.(ested leaves, Intensity of Iarval lnlestation and ths iarval vitality.
The present results clarify that assessment of the test compound using a certain criterion does not conniet with other criterta. Despite of offering more accurate and retiable data by the tast two criteria, the order of insecticidal efficacy by vsu19 the three rested criteria seems to be almost similar.
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