INSECT PESTS AND DISEASES. 



101 



Bugs. 



Another mischievous insect a chrysanthemum grower 

 has to cope with is the small greenish bug, or fly 

 (Calocoris chenofiodii], nearly as large as a lady-bird. If 

 one or more of the leading points of a plant are seen to 

 be drooping while the others are fresh and green, depend 

 upon it one of these tiresome insects is the cause of the 

 mischief; and if you pass your hands gently up the stern 

 they will run to the top or behind a leaf where they may 

 be caught. They have very sharp piercers, with which 

 they penetrate the soft stem to the centre and the shoot 



The Green Bug. 



20. magnified ; c natural size. 



2 1 . pupa ; d natural size. 



27. another species (pale green) ;" ' g natural size. 



often goes blind, or becomes crippiled. As soon as these 

 insects leave the egg they can run about, being furnished 

 with legs, horns, etc., like their parents, but their wings 

 at this stage are not developed. In every stage of their 

 existence they feed in the same manner, but the perfect 

 insects are exceedingly active and can fly well. 



A brownish-black bug which rejoices in the name of 

 Aphro-phora alni also gives a great deal of trouble. Some- 

 times it changes its coat, and for a day or two is of 

 a red colour. These bugs act in a similar manner to 

 the greenish ones mentioned in the preceding para- 



H 



