IMPROVING SPORT FISHING BY CONTROL OF AQUATIC WEEDS 



Table of Contents 



Page 



INTRODUCTION - Need for Weed Control 1 



DETERMINATION OF AREA AND VOLUME OF WATER 1 



USEFUL UNITS OF MEASUREMENT 2 



CONTROL OF POND SCUMS AND OTHER ALGAE 4 



Control of Algae with Dichlone 6 



Hyamine for Algae Control 6 



Biological Control of Aquatic Vegetation 7 



CONTROL OF WATER-BLOOM ALGAE 7 



Lake Treatments of Water-bloom Algae 8 



CONTROL OF EMERGENT AND FLOATING-LEAFED AQUATIC PLANTS 12 



2,4-D, 2,4,5-T, etc ". 13 



Danger of Aerial Drifts in Spraying of the Formagenic 



Compounds 16 



Cleaning of Equipment Used in Spraying Formagenic Com- 

 pounds 17 



CONTROL OF SUBMERSED AQUATIC PLANTS 17 



Mechanical Methods of Control 18 



Control with Fertilizers 18 



Reclamation of Old Ponds and Lakes 21 



Chemical Control of Submersed Plants 22 



Diquat (EB . 2) 22 



Endothal 22 



Hyamine 1622 23 



Simazine 23 



Silvex 23 



Granular 2 ,4-D 24 



Sodium Arsenite 24 



Rates of Application of Sodium Arsenite 25 



Methods of Application 26 



Precautions in Handling 26 



Lake Shoreline Spraying with Sodium Arsenite 29 



SUMMARY 32 



LITERATURE CITED 34 



APPENDIX A. --Chemical Control Agents and Quantities Required 

 to Control Aquatic Plants 



APPENDIX B. --Application Formulas 



APPENDIX C, --Herbicide Products and Sources 



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