PULSE CROP PROJECTS 265 



as the plants are up, is valuable, but the standard treatment is to 

 spray the plants thoroughly with nicotine solutions. 



W-VG : 413. CL : 54, 71, 79. S-P : 36-43. 



Unlike the bean weevil, the pea weevil does not work in dried 

 peas. Infested seed, even if the germ is not destroyed, produces 

 weakened vines which do not set a normal number of pods. The 

 beetles are similar in color to the bean weevil, but are larger. 

 Eggs are laid on the surface of newly forming pods and the young 

 weevil works through the pod into a pea, where its development is 

 completed. The insect is single brooded, and remains in the 

 seed over winter, or may leave it and hibernate in rubbish near by. 

 It may be controlled by fumigation. 



Peas are subject to several diseases of the foliage, stems, and 

 roots, most of which are of only local or minor importance. 

 Spot is a disease which results in a spotting of the stems, leaves, and 

 pods. It is most noticeable on the pods when the spots are cir- 

 cular and sunken and is apt to be the most serious when the stems 

 are attacked. Pea spot may be controlled by crop rotation and 

 the planting of clean seed. Powdery mildew is another disease 

 often spread in infected seed. It may be controlled by spraying 

 with Bordeaux mixture. Bacterial blight is a disease of impor- 

 tance in some sections. The stems and leaflets become watery and 

 discolored a yellowish-brown. Stem rot may be of importance 

 as a disease of seedlings. Liming the soil is often beneficial. 



1. In what respects do the pea and the bean weevil differ? CL : 55. 



2. What is the life history of the pea weevil? CL: 55-56. 



3. Should weevil peas be planted? State reasons. CL:56. 



4. Is it safe to store pea^ and beans as seed? CL:64. 



5. Is control practicable? If so, describe the method. CL: 64-65. 



