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Control Measures. 



The control of these insects on wide areas of forest lands is not at 

 present to be considered. The following directions apply to the protection 

 of shade-trees, orchards, parks and wood-lots. 



The Destruction of Egg-masses. — While the trees are bare of 

 leaves the egg-masses may be very easily distinguished on the twigs. From 



1, the American Tent Caterpillar; 2 and 3, the Forest Tent Caterpillar. (Slightly enlarged). 

 From Entomological Circular No. 1, Div. Ent., Dept. Agriculture, Ottawa. 



Moths of the Tent Caterpillar. M. americana above; M. disslria below; 9, male; ;\ female. 

 Ent. Cir. 1, Div. Ent., Dept. of Agric, Ottawa. 



