Sugar Beet Nematode 

 How to Check Multiplication of Nematodes 



Field Surveys 



All suspected fields should be thoroughly examined, so that the 

 exact location and extent of infested areas may be known. That such 

 surveys of suspected lands be made is of the greatest importance. 



Local Treatment 



If the infested areas are small, local treatment may be all that is 

 necessary. All plants on the area should be pulled, together with those 

 from a strip several feet wide all around it. These should be destroyed 

 by burning on the spot. 



A trench about one foot deep and one foot wide should then be dug 

 around the infested spot and this filled with quick-lime. The surface 

 of the infested area should be covered with lime an inch or two deep and 

 this thoroughly mixed with the soil. Frequent mixing of the limed soil 

 will add to the effectiveness of the treatment. 



Pasturing with Sheep 



Pasture the beet tops grown on infested land to sheep, rather than to 

 other stock, as the nematode in the tops eaten will thus be destroyed, and 

 will not be returned to the soil through the manure. 



Rotation 



The sugar beet nematode infests the roots of many weeds and cul- 

 tivated crops. The following list of plants known to be subject to attack 

 is taken from Farmers' Bulletin No. 772 of the U. S. Department of 

 Agriculture. 



Alfalfa 



Allseed 



Barley 



Beans, Dwarf Pea 



Beans, Lima 



Beets, Garden 



Beets, Sugar 



Cabbage 



Cabbage, Chinese 



Cauliflower 



Celery 



Clover, Crimson 



Clover, White 



Corn 



Cress 



Dandelions Pinks 



Foxtail, Green Potatoes 



Hemp Radishes 



Hops Rape 



Kale Rutabaga 



Kohl-rabi Rye 



Lentils Sorghum 



Lupine, Yellow Spinach 



Meadow-grass, Annual Sunflower 

 Meadow Oat-grass, Tall Timothy 



Mustard Turnips 



Oats Vetch 



Parsnips Wheat 

 Peas, Garden 

 Peas, Sweet 



In the above mentioned bulletin the author lists the following crops 

 as being available for Colorado and neighboring states for rotation on 

 infested land: 



Cow Peas Asparagus 



Soy Beans Lettuce 



Sweet Clover Cantaloupe 



Rye Barley 



The Millets Wheat 



Tomatoes Cucumbers 



Potatoes 

 Potatoes are often slightly injured. 



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