Preparation and evaluation of botanical and mineral oils EC formulations against the black (Parlatoria ziziphi) on navel orange trees (Citrus sinensis) | ||||
| Egyptian Journal of Agricultural Research | ||||
| Volume 103, Issue 3, September 2025, Page 367-381 PDF (1.19 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejar.2025.401821.1695 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Zakia K. Elkhiat  1; Aly F. Aly1; Sanaa M. Abd el-mageed2
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| 1Pesticide Formulation Department, Central of Agricultural Pesticide Laboratory, Agricultural Research Center, Doki, Giza, Egypt | ||||
| 2Plant Protection Research Institute, Agricultural Research Center, Doki, Giza, Egypt | ||||
| Abstract | ||||
| This study aimed to develop, and assess the insecticidal effectiveness of mineral and botanical oils as alternatives in environmentally friendly integrated pest management. These oils were evaluated as bio-insecticides for controlling the black parlatoria scale insect, Parlatoria ziziphi infesting navel oranges trees under field conditions. To assess the physical and chemical properties of three tested (orange, citronella, and mineral) oils they were prepared as emulsifiable concentrate (EC) formulations and combined at half the concentration and half application rate. The physical parameters tested include accelerated storage, surface tension, viscosity, pH, acidity or alkalinity, flash point, density, specific gravity, and the active ingredient content both before and after storage. The population reduction treatment was carried out on August 2023 and 2024 in the garden of the Agricultural Research Center in Giza Governorate, Egypt P. ziziphi showed insecticidal responses across various tested treatment stages, with the nymph stage being the most susceptible, followed by adult females and gravid individuals. All treatments effectively increased the reduction of nymphs, adult females, and gravid stages of over a four-week period in each season. During the first and second seasons, the average reduction rates with unmixed oils ranged between 60.9% and 66%. Based on the aforementioned results, the use of mixed oil formulations resulted in higher reduction rates, ranging from 75.1% to 78.1%. Botanical and mineral oils were valuable environmentally conscious trend for (P. ziziphi) on Navel oranges trees (Citrus sinensis), aligning perfectly with the principle of sustainable of integrated pest management. | ||||
| Keywords | ||||
| Green Emulsifiable concentrate; oils; Parlatoria ziziphi; Insecticidal efficiency and Navel oranges | ||||
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