120 
Here, again, clean- farming methods are of much importance 
Cold frames should be placed at some distance from wood-piles 
and out-buildings, and as soon as the crop has been gathered the 
vines should be covered with straw or other easily inflammable 
material and burned. 
The Melon Aphis 
Aphis gossypii Glover 
(ApJiis cuciimcris) 
Altho the truck gardener may not have noticed the melon aphis 
on his cucumber plants, a curling of the leaves (Fig. 13) is pre- 
sumptive evidence of its presence in injurious numbers. It is not 
only a serious outdoor pest, but it is often very injurious to cucum- 
bers in greenhouses. 
Fig. 13. Melon .\phis, Aphis gossypii: its work. (Chittenden.) 
