Report of Monitoring and Assessment of Desert Locust in Africa And
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Aerospace Information Research Institute, Chinese Academy of Sciences Report of Monitoring and Assessment of Desert Locust in Africa and Asia 2021 (No. 1-22) Vegetation Remote Sensing & Pest and Disease Application Research Team RResearch Team No. 22 Desert Locust monitoring and loss assessment in Somalia (July) ………………………..…………….………………………………………………..1 No. 21 Desert Locust monitoring and loss assessment in Ethiopia (June) …………………………………….…….…………………………………………..6 No. 20 Desert Locust monitoring and loss assessment in Somalia (June) …………………………………….……………………………………………..10 No. 19 Desert Locust monitoring and loss assessment in Ethiopia (May) …………………………………….……………………………………………..15 No. 18 Desert Locust monitoring and loss assessment in Somalia (April) …………………………………….……………………………………………..20 No. 17 Desert Locust monitoring and loss assessment in Kenya (March) ………………………………….……………………………………………....26 No. 16 Desert Locust monitoring and loss assessment in Ethiopia (February) …………………………………….………………………………………..…32 No. 15 Desert Locust monitoring and loss assessment in Kenya (January) …………………………………….……………………………………………38 No. 14 Desert Locust monitoring and loss assessment in Somalia (December) ………………………………………………………………………………44 No. 13 Desert Locust monitoring and loss assessment in Ethiopia (November) ………………………………………………………………………………49 No. 12 Desert Locust monitoring and loss assessment in Somalia and Yemen (October) …………………………………………………………………………………54 No. 11 Desert Locust monitoring and loss assessment in Ethiopia and Kenya (September) ………………………………………………………………………………60 No. 10 Desert Locust monitoring and loss assessment in three Southwest Asia countries (August) ………………………………………………………………………………..…66 No. 9 Desert Locust monitoring and loss assessment in six Asian and African countries (July)………………………………………………………………………………………74 No. 8 Desert Locust monitoring in Asia and Africa and loss assessment in Yemen (June)…..........................................................................................................................….88 No. 7 Desert Locust monitoring and loss assessment in Kenya and Ethiopia (Late May)….…...........................................................................................................................95 No. 6 Desert Locust monitoring and loss assessment in Pakistan and Somalia (Early May)…..............................................................................................................................101 No. 5 Desert Locust monitoring and loss assessment in Yemen and Ethiopia (Mid April)….............................................................................................................................107 No. 4 Desert Locust monitoring and loss assessment in Somalia and Pakistan (Early April).................................................................................................................................115 No. 3 Assessment of Desert Locust migration and loss in Kenya and Ethiopia (Late March)...............................................................................................................................122 No. 2 Assessment of Desert Locust migration and loss in Asia and Africa (Early March)...............................................................................................................................129 No. 1 Desert Locust invasion in Africa and Asia (February)............................................137 July 2021 No.8 Total: 22 Aerospace Information Research Institute, Chinese Academy of Sciences Key laboratory of Digital Earth Science, Chinese Academy of Sciences Big Earth Data Science Engineering Project (CASEarth) Sino-UK Crop Pest and Disease Forecasting & Management Joint Laboratory Key Lab of Aviation Plant Protection, Ministry of Agriculture and Rural Affairs, P.R. China National Engineering Research Center for Agro-Ecological Big Data Analysis & Application Report of Monitoring and Assessment of Desert Locust in Africa and Asia Mid July 2021 Desert Locust Monitoring and Loss Assessment in Somalia Overview Content Overview 1 Integrated with multi-source Earth Desert Locust Monitoring and Loss Observation data, e.g. meteorological data, Assessment in Somalia 2 field data, and remote sensing data (such as Contact us 5 GF series in China, MODIS and Landsat series cropland, 31.4 thousand hectares of grassland in US, Sentinel series in EU), and and 574.2 thousand hectares of shrub. It is self-developed models and algorithms for expected that from July to September, affected Desert Locust monitoring and forecasting, the by the summer rainfall, the locusts in Somalia research team constructed the ‘Vegetation will continue to mature and multiply. Until then, pests and diseases monitoring and forecasting the number of locusts in the territory will system’, which could regularly release increase significantly, and the locusts are thematical maps and reports on Desert Locust. expected to spread to Ethiopia and Yemen. The This report focuses on the updates of next three months will be important growing desert locust monitoring and loss assessment and harvesting seasons in Somalia. It is still in Somalia from April to June 2021. The results necessary to pay close attention to the showed that from April to June 2021, desert dynamics of desert locusts in Somalia to locusts in Somalia were mainly distributed in prevent agricultural and pasture production the north. Compared with March, the newly losses. The research results are as follows. damaged vegetation was 606.3 thousand hectares, including 0.7 thousand hectares of - 1 - Page 2 Desert Locust Monitoring year. The monitoring results showed that desert and Loss Assessment in locusts in Somalia harmed about 587.8 Somalia thousand hectares of vegetation area in June, In early and mid-April 2021, affected by with an increase of 185.7 thousand hectares ground control operations, the number of (including 0.1 thousand hectares of cropland, locusts in Somalia has decreased significantly; 6.1 thousand hectares of grassland, and 179.5 In late April 2021, affected by rainfall, locusts in thousand hectares of shrub) (Figure 3). northern Somalia continued to lay eggs and The research results show that, compared reproduce. The monitoring results showed that, with March 2021, desert locusts in Somalia in April, desert locusts in Somalia harmed about newly harmed about a total of 606.3 thousand 414.6 thousand hectares of vegetation area, hectares of vegetation area from April to June, with an increase of 181.6 thousand hectares including 0.7 thousand hectares of cropland, compared to March (including 0.1 thousand 31.4 thousand hectares of grassland, and hectares of cropland, 8.6 thousand hectares of 574.2 thousand hectares of shrub, accounting grassland, and 172.9 thousand hectares of for 0.7%, 0.8% and 1.3% of the total cropland, shrub) (Figure 1). In early May 2021, due to the grassland, and shrub in Somalia, respectively. continuous impact of rainfall, the locusts in The affected areas were mainly located in Somalia gradually matured and laid eggs; in northern Somalia. The north and south of mid-to-late May 2021, affected by ground Togdheer was the worst affected area, with an control actions, the number of locusts affected area of 262.8 thousand hectares, decreased. The monitoring results showed that followed by the south of Woqooyi Galbeed, with desert locusts in Somalia harmed about 561.3 an affected area of 130.5 thousand hectares. thousand hectares in May, with an increase of The north of Sanaag had an affected area of 239.0 thousand hectares (including 0.5 83.9 thousand hectares, the northern part of thousand hectares of cropland, 16.7 thousand Sool had an affected area of 53.6 thousand hectares of grassland and 221.8 thousand hectares, and the south of Awdal had an hectares of shrub) (Figure 2). In June, thanks to affected area of 25.0 thousand hectares. The the progress of ground control operations, the affected areas of Mudug, Bari, Shabeellaha number of Somali locusts decreased Dhexe, Nugaal were relatively small, with significantly compared to the same period last affected areas of 18.4, 14.3, 12.2, and 0.56 - 2 - Page 3 thousand hectares, respectively. locusts in Somalia. The next three months will Comprehensive analysis shows that, as coincide with the critical growing and ground control operations continue, the size harvesting seasons for food crops in Somalia. and number of desert locust swarms in Somalia We still need to pay close attention to the in July have significantly decreased compared situation of desert locusts in Somalia. If not to the same period of last year. Forecasts show adequately controlled, locusts will bring a major that from July to September, affected by rainfall, threat to agricultural and pasture production. locusts in northern Somalia will continue to Ground surveys and control actions are mature, reproduce and lay eggs, which would required to safeguard agricultural and pasture lead to a further increase in the number of production. Figure 1 Monitoring of Desert Locust damage in Somalia (April 2021) - 3 - Page 4 Figure 2 Monitoring of Desert Locust damage in Somalia (May 2021) Figure 3 Monitoring of Desert Locust damage in Somalia (June 2021) - 4 - Page 5 Contact us Aerospace Information Research Institute support program for high-level personnel Chinese Academy of Sciences recruitment (Wenjiang Huang), and Youth No.9 Dengzhuang South Road, Haidian District, Innovation Promotion Association CAS (2017085). Beijing 100094, P.R.China. Contact us Email: [email protected] http://www.rscrop.com/