دراسة استخدام مستخلصي نبات العنشط Acalypha fruticosa و نبات الشذاب Ruta chalepensis L في مكافحة حلم الفاروا destructor Varroa الذي يهاجم طوائف نحل العسل

Abstract EN

This study was conducted at the Institute of Agricultural Vocational Apiary Training in Odin- Ibb- Republic of Yemen, on the bee cultivars of the Yemeni strain Apis mellifera jemenitica in modern hives (Langstroth).

Extracts of the aromatic plants, Acalypha fruticosa and Ruta chalepensis were tested against Varroa mite, Varroa destructor attacking honeybee colonies by spraying honeybee trays.

The falling mites were counted after one hour and 24 hours of application, then daily for 6 consecutive days.

The experiments were conducted from 4 pm and 6 pm, where the majority of field workers had returned to the cells, In addition to the incubator workers inside the cells, which is infested by varroa more than the older workers.

The obtained results showed that both of tested extracts highly reduced varroa mites, moreover, there were significant differences among all treatments at p<0.05 compared to control.

The percentages numbers of fallen mites were 47.6, 44.3, and 22.8 % for R.

chalepensis, A.

fruticosa, and control, respectively.

The relative efficacy against varroa mites of A.

fruticosa extract was 87.02%, and R.

chalepensis was 79.99%, while it was 29.66% and 13.27 %, for control and check treatments, respectively.

In the case of the varroa that fell after the application compared to the normal fall before application (twice) in the treatment of Acalypha fruticosa high at an average of 8.64 (weakness).

The mean variability of Ruta chalepensis L treated hives was 4.70 (weakness), with a significant difference at p < 0.05.

The difference was also significant between A.

fruticosa and R.

chalepensis L and treated control colonies and in non-controlled (control).

Comparing the relative folds of reduction efficacy, it was 8.64, 4.70, and 1.42 folds for A.

fruticosa, R.

chalepensis, and control, respectively.