Evaluation of the efficiency of some plant extracts against all the stages of gray scale insect Parlatoriablanchardi (Targioni-Tozzetti( on date palms ((Homoptera: Diaspidadae Phoenix dactylifera L. In Laboratory

	Evaluation of the efficiency of some plant extracts against all the stages of gray scale insect Parlatoriablanchardi (Targioni-Tozzetti( on date palms ((Homoptera: Diaspidadae Phoenix dactylifera L. In Laboratory
journal of kerbala university
Article 1, Volume 14, Issue 1, 2018, Pages 213-221 PDF (0 K)
Abstract
The research was carried out to study the efficacy of water extracts of tea plants Camellia sinensis (L.), Eucalyptus camaldulensisand Oleavera in the control of gray scale insect parlatoriablanchardi(Targioni-Tozzetti). The results showed an advantage of the Oleavera extract on the plant extracts used in the experiment in eliminating all insect stages, with a relative efficiency rate of 45.9, 52.8%, 42.5 and 39.2% Respectively for each of the eggs, the crawling nymph , sitting nymph and the adult stage, the results showed that the best concentration gave the highest mortality rate for egg was the concentration (3 ml / L.) of the Eucalyptus extract was found to be 100% effective after five days of treatment with extract and a significant difference in all concentrations and time periods. The highest relative efficiency of the elastomeric stages was the total of the aloe vera extract and the concentration of 3 ml / L and five days after treatment with the extract and a significant difference from the rest of the concentrations and for all periods of time was 91.2, 74.3 and 91.1%, respectively

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