حصر العوائل والانتشار والكثافة العددية لدودة الربيع الناسجة Ocnogyna Spp (Lepidoptera: Arctiidea)‎ في منطقة المرج-ليبيا

الملخص EN

This study was carried out in the southern region of Al-Marj city - Libya from December to the end of February 2017-2019 on the larvae of the pest Ocnogyna Spp.

Lepidoptera: Arctiidae.

Which spread on forest and Agronomy field, larvae of this insect covered with orange hairs in general with the presence of bundles of black and white hairs in longitudinal rows, and it was found in forest shrubs and trees and in the fields of barley.

The larvae after hatching they stay aggregated covered with web for several days and then spreads to the rest of the field to search for food, attacking bushes and field grain crops causing the entire plant to annihilate, and it was widely observed on Drimia Maritime.

L.

But it was not recorded on forest trees such as Juniperus phoenicea L., Pistacia lentiscus L.

and Olea Europea L.

Its density in study areas was Highter in year 2018, more than in year 2019.

In 2018 season, it spread in a high density, covering natural pastures and agricultural roads, wind transported it south to other areas to continue its life cycle, and it may be exposed to annihilation due to birds and vehicles on the roads, or the place is not suitable to continue growth and then faille to complete its life cycle.