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Bulletin title ICOSAMP logo

No.50 (December 2005)

The Monthly Bulletin is compiled from information retrieved from monthly Migrant Pest Reports received from SADC member countries, IRLCO-CSA, and the AFS. (Click HERE to access archived Bulletins and maps.)


General Summary
Armyworm Situation
Locust Situation
Quelea Situation
General Notices
Notes to Collaborators
Current Map

Reports for December 2005 were received from:
Botswana, Mozambique, Namibia, South Africa, Zambia, AFS, and IRLCO-CSA

No reports were received from AAngola, Congo, Lesotho, Malawi, Swaziland, Tanzania, or Zimbabwe.

SADC Collaborators are kindly requested to read the "General Notices" section.

Outbreaks of the African armyworm were reported in Malawi, Tanzania, and Zambia.

Locusts. Brown locust (Locustana pardalina) hopper bands and swarms were controlled in the outbreak area of South Africa. No outbreaks of other locusts were reported in the SADC region.

Quelea roosts and colonies were controlled in South Africa and Tanzania. The remainder of the SADC region remained calm.

Malawi (IRLCO-CSA). Armyworm outbreak reports were received in mid December from Ntchisi and Kasungu districts of Kasungu Agricultural Development Project. Crops attacked included maize and pastures. Control was undertaken by farmers using Chlorpyriphos (Dursban 50% EC), with technical assistance from the Ministry of Agriculture. A total of 853ha were affected.

Tanzania (AFS). Outbreaks were reported in the Mbeya district of the Mbeya region, attacking 120ha of younger maize crop at Songwe prison farm. Moth catches were reported at Mbeya (717) and Mbozi (239).

Zambia (M Kanyemba). An outbreak of larvae (various stages) was reported in Kabwe, where farmers sprayed with cypermethrin, and also dug trenches around their fields.

The remainder of the region remained FREE of armyworm infestations.

South Africa (K Viljoen). A total of 435 brown locust bands and 10 swarms were controlled in the Murraysburg and Beaufort West districts of the Western Cape Province, and Victoria West district of the Northern Cape Province. Band size varied from small to large bands, while the majority of the swarms were small in size. Control was undertaken by the National Department of Agriculture using Decis. No further details are available.

No reports of outbreaks of other locusts were received from the region.

QUELEA (map)
South Africa (L Geertsema). Two (2) roosts and 2 colonies were controlled in the Free State and Limpopo Provinces, with none of the sites identified as traditional Quelea sites. One roost was located in wetland habitat with the remainder in habitat identified as savannah. Minimal damage (7-15%) was reported in the wheat, barley, and manna crops near these sites. The size of the roosts were 1.5 and 5ha, and the colonies were 12 and 14ha each. The total area treated was 32,5ha with an estimated number of 2,1m birds present. The largest concentration of birds (1,1m) was at Warden. Chemical control (3x) in environmentally safe areas was undertaken using Falcolan® (active ingredient cyanophos 520g/l) and explosives (1x) were used in the wetland area, with an estimated 85-90% kill achieved. Non-target mortalities recorded were 45 x Red Bishops, 14 x Golden Bishops.

Tanzania (via AFS). 2 Quelea roosts were controlled in the Munissi area. However there were no susceptible cereal crops in the area.

No further reports of Quelea birds in the SADC region were received.

1. The reporting rate for December is 53%. Country collaborators are reminded that reports should reach the coordinator by the end of the 1st week of the following month so that they can be included in the Bulletin. Reports should be sent even if there were NO migrant pest outbreaks, or NO surveys were conducted.
2. The ICOSAMP software was installed on the computers of the Armyworm Forecasting & Control Services in Tanzania, and 2 staff members were trained on the use of the system. A GIS ArcView 3.3 software package was also donated.
3. Please remember to inform the ICOSAMP Co-ordinator of any website addresses or forthcoming workshops that may be of relevance to our group.

Information is gratefully acknowledged from Ministerial collaborators in each SADC country, the International Red Locust Control Organisation for Central and Southern Africa (IRLCO-CSA) in Zambia, and the Armyworm Forecasting & Control Services (AFS) in Tanzania. Thanks to Ecoport for hosting our website.

Collaborators are kindly reminded to make sure that the migrant pest monthly reporting forms are sent to the Co-Ordinator by the end of the first week of the following month, so that this information can be included in the Monthly Bulletins. Reports should be sent even if NO migrant pests were found, or NO surveys were conducted.

Reports can be faxed or emailed to:
M Kieser
Fax: +27 +12 329 3278
Email: icosamp@ecoport.org

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