AS A RESULT OF THE REGIONAL WORKSHOP ON AQUATIC WEED CONTROL AND MANAGEMENT, HELD IN KHARTOUM, SUDAN, NOVEMBER 24-29, 1975, DR. RICHARD R. YEO AND MR. WILLIAM BAILEY WERE ASKED BY THE NATIONAL ACADEMY OF SCIENCES TO DELIVER CHINESE GRASS CARP AND DWARF SPIKERUSH TO EGYPT AND SPIKERUSH INTO SUDAN. THE CHINESE GRASS CARP IS BEING USED IN MANY COUNTRIES FOR REMOVAL OF UNDERSIRABLE SUBMERSED AQUATIC VEGETATION IN CANALS, PONDS, LAKES, AND OTHER WATER SYSTEMS. THE FISH CAN EAT ITS OWN WEIGHT IN VEGETATION EACH DAY, AND IS A PALATABLE SOURCE OF PROTEIN. THE SPIKERUSH IS A SHORT-GROWING AQUATIC PLANT THAT DISPLACES ROOTED AQUATIC WEEDS. THE DWARF SPIKERUSH, WHICH THRIVES IN LOW ELEVATIONS AND WARM CLIMATES, HAS COMPLETELY DISPLACED DENSE GROWTHS OF WEEDS IN SOME CANALS IN CALIFORNIA. ON MAY 20, 1976, YEO AND BAILEY FLEW TO EGYPT WITH PLASTIC, INSULATED BAGS AND BOXES CONTAINING 60,000 SIX-DAY-OLD FRY OF CHINESE GRASS CARP (BRED IN ARKANSAS) AND FOUR VIALS OF DWARF SPIKERUSH SEED. IN EGYPT THE SPIKERUSH SEED WAS DELIVERED TO THE FARM RESEARCH STATION OF CAIRO UNIVERSITY FOR START-UP OF A SPIKERUSH NURSERY. THE GRASS CARP FRY WERE DELIVERED TO EGYPTIAN BIOLOGISTS FOR REARING AT THE SIRW FISHERIES RESEARCH STATION. DETAILED IN THIS REPORT ARE THE OBSERVATIONS OF THE EGYPTIAN FACILITIES, MEETINGS HELD, WITH WHOM, AND TYPES OF AQUATIC WEEDS NOTED IN VARIOUS CANALS VISITED. ON MAY 27 YEO AND BAILEY FLEW TO SUDAN AND DELIVERED SPIKERUSH SEEDS TO SUDANESE SCIENTISTS, WHO PLANNED TO CONSTRUCT A SPIKERUSH NURSERY AT THE GEZIRA AGRICULTURAL RESEARCH STATION. DETAILED ARE RESEARCH SITES VISITED, MEETINGS HELD, LECTURES GIVEN, AND AQUATIC WEEDS IDENTIFIED IN VARIOUS CANAL SYSTEMS. RECOMMENDATIONS FOR FURTHER INTERNATIONAL EXCHANGE OF RESEARCH TECHNIQUES, SEEDS, AND FRY ARE INCLUDED.