LOCUST BULLETIN n. 49 - MAY 2017
Weather conditions, which were unsuitable for locusts in early spring, continued to locally delay or hamper their development but recent warming up of temperatures boosted Moroccan Locust (DMA) adult appearance. As a result, DMA fledging started in probably all Central Asian (CA) countries as well as in Azerbaijan and egg-laying was reported in Tajikistan and Uzbekistan. During the forecast period, DMA fledging and egg-laying will generalize in all countries of usual DMA distribution area (i.e. all CCA countries but Armenia) and DMA life cycle will come to an end in southern CA countries. Italian Locust (CIT) hopper development will continue and fledging will start in southern CA countries while hatching and hopper development will generalize in Armenia and Georgia. Migratory Locust (LMI) hopper development will continue in Kazakhstan, Russia and Uzbekistan. So far, 1.5 million ha have been treated in CCA countries mainly against DMA hopper bands (more than 87%), which represents twice the area treated during the same period in 2016.
RECENT TRENDS (from 2006)
The below tables present the surveyed, infested and treated areas (in hectares) from 2005 to 2014 in Central Asia (Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan), Caucasus (Armenia, Azerbaijan and Georgia) and CCA adjacent areas (Afghanistan and Russian Federation).
1. Surveyed areas (ha)
2. Infested areas (ha)
3. Treated areas (ha)
Sources: Filled-in questionnaires sent back by countries in 2008-09 and information collected during the Regional Consultation on Locust Management in CCA (Kazakhstan in October 2009) and the annual Technical Workshops on Locusts in CCA (from 2010 to 2016).