PHILIPPINES (cont'd)

 Management of limiting factors in anticoagulant baiting
 of lowland ricefield rats . . .... .29

 Assessment of rat damage to corn . .. . 29

 Glue stakes reduce bird damage in ricefields . 30

 Use of crown baiting with wax blocks to reduce rat
 damage in coconut palms . . . 31

 Anticoagulant residues in the ricefields . .. 36

 Preliminary trial of an electric rat barrier in a
 farmer's ricefield . . . .. .36

 Training . . . . .. ... 37

SUDAN . . . . . . 39

 Indirect (population suppression) control efforts 40

 Some economic aspects . . . . 40

 Basis for estimates of cereal grain losses to quelea in
 Africa . ............ . . . . 51

 Summary of major bird damage problems in the Sudan 51

 Repellent testing: efficacy of methiocarb for
 protecting sorghum from house sparrow damage . .. 54

 Field trials: Upper Nile, Blue Nile, Kordofan, and
 Kassala Provinces . . . .... .55

 Blue Nile Integrated Agriculture Development Project 56

 Rodent problems in the Sudan . . .... 56

 Personnel and training . . . .... .59

 Cooperation with international and national
 organizations . . . . 59