P .1YLLOXBBA. 



Insect in Various Stages of Development 



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Larva First Stage. ] Larva Second Stage. : Larva Third Stage. | Perfect Insect 



Winged Female 

 All Highly Magnified. 



dull orange. There are various forms of the insect, one class being 

 subterranean and feeding upon the roots, while another section attacks the 

 leaves. Each class has breeders or " queens " which multiply with great 

 rapidity and more especially the serial class. This last named class is, 

 however, less common than the underground one. Some of the insects 

 produced under ground come to the surface, develop wings and become 

 serial. Scientists also say that the aerial type will produce subterranean 

 insects. The underground form of insects attack themselves to the small 

 roots which they feed upon and gradually destroy the vitality of the 

 plants. A strong vine may be able to withstand the attack for two or 

 more years but it must eventually succumb to it. Roots of affected vines 

 become swollen in parts forming small tubercles. Wken the leaves are 

 attacked, round fleshy galls are formed often in considerable number. 

 Various remedies have been recommended, but none are thoroughly 

 effective and some are not always practicable. Among these are the 

 submersion of the vineyard in water, a method that is effective to a large 



