112 INSECT PESTS 



Vine Weevil {Otiorrhynchus sulcatus) is the worst 

 offender, feed during the larval stages on the 

 roots and regale themselves as adults upon the 

 young leaves. We must also add the Cockchafer 

 and the Click Beetles (Wire worms). 



2. Moths. The larvae of several of the larger moths 



eat vine leaves, e.g. the Gothic {N. typica), the 

 White Line Dart {A. tritici), the Yellow Under- 

 wing {T. pronuba), the White and the Buff 

 Ermines {S. menihastri and S. hihricipeda). 

 Then there is a tiny moth called the Grape Tor- 

 trix (Conchylis ambiguella) which spins up in 

 and feeds on the flowers in springtime, a second 

 brood of the same moth boring into the fruit 

 later on. 



3. Hemiptera. Among these we have the Grape Scale 



{Coccus vitis), which infests the bark, as weU as 

 the Mealy Bug (C. adonidum), an insect which 

 has been introduced from abroad, while the most 

 deadly of all grape pests is seen in the Vine 

 Louse {Phylloxera vastatrix) which attacks both 

 roots and leaves aUke. 



4. Hymenoptera. Here of courte the Common Wasp 



{Vespis vulgaris) and the Hornet (F. crabro) are 

 the chief offenders at the time of ripe fruit. 

 Certain Sand Wasps {Odyneri) are predacious 

 upon the Vine Weevils above referred to. 



5. Leaving insects, we come to Red Spider or Spinning 



Mite, which breed so profusely on the underside 

 of the leaves and deprive them of their vital 

 juices. 

 6 Mildew and fungi. 



I might perhaps have included Aphids, Thrips, Ear- 

 wigs and Flies, but these have been dealt with already 

 under other heads, and the same remedies will apply. 

 As will be seen, this is a pretty comprehensive list that 

 we have to tackle in the case of the vine, and as one might 



