OUTBREAK ISSUES Finding and treating a hopper patch: can this be done? | | | |
| a simulated 1 sq metre hopper patch made from gravel (37K) | searching and treating a hopper patch (29K) | |
Spraying a hopper patch: is a handheld Microulva or a Herbi sprayer better? | ![](img/microherbi0.tb) | | ![](img/microherbi2.tb) |
| Dr. Symmons demonstrating the use of the Herbi handheld sprayer (30K) | using a Microulva to spray a patch of vegetation with simulated locust collectors (27K) | using a Herbi to do the same thing (25K) |
PLAGUE ISSUES Marking and spraying a 1 ha hopper band: how long does this take and is spray coverage adequate? | | | ![](img/1band3.tb) |
| organizing the marking and spraying of a hopper band outlined in gravel (30K) | flagman guiding the field officer who is doing the spraying (31K) | spraying the last part of the band (28K) |
The principles of ULV spraying | | | |
| demonstrating the collection efficiency of a flying locust (32K) | ULV spraying demonstration in the field (29K) | |
ULV block spraying: can blocks be delimited? | | | |
| field team for delimiting a block of hopper patches (30K) | determining how to delimit the block from the results of searching for hopper patches (30K) | |
Comparing different plague control methods: what is required and what can be achieved? Organizing and implementing a plague campaign | | ![](img/campaign1.tb) | ![](img/campaign2.tb) |
| using a computer spreadsheet to compare different control methods (26K) | prepositioning available pesticide and vehicles in a mock campaign (23K) | reading the daily information and carrying out the mock campaign (25K) |