PEACH INSECTS 63 



moth is only a little over half an inch in expanse of 

 wings and of a dark grey color. 



Control — Lime-sulphur i to 10 and i to 11 ap- 

 plied in the spring after the buds have begun to 

 swell seems effective in California and Colorado; 

 also arsenate of lead, 5 pounds to 50 gallons, applied 

 when the majority of the blossom buds are showing 

 their pink tips seems effective in Colorado. 



Green peach apelid^^ (Myjziis persiccc) 

 Order — Hemiptera 



Described under a multitude of names; feeds on 

 60 different plants; most abundant peach louse; 

 spends winter in tgg stage on tree; eggs hatch in 

 early spring and young go on the buds; the third 

 generation leaves for other plants. 



Control — Spray with nicotine sulphate, % pint 

 to 100 gallons of water with 4 pounds of soap or 

 with whale-oil soap, i pound to 5 gallons or with 

 10% kerosene emulsion. 



The peach lecanium ^^ (Lecaniiun nigrofascia- 



fum) 

 Order — Hemiptera 



The ''Terrapin scale" affects peach, plum, apple, 

 maple, sycamore, linden, and birch; it winters as 

 an immature female on the branches ; these mature 

 early in spring and bring forth the young; the 

 young go to the leaves and continue their growth 

 slowly until fall when they hibernate ; only one gen- 

 eration a year; this insect is apparently not abun- 

 dant in New York; affected trees take on a sooty 

 appearance due to a black fungus that flourishes 

 in the honey-dew excreted by the insects. 



Control — Lime-sulphur is not effective; kero- 



48 Gillette— Colo. Expt. Stat., Bull. 133. 



49 Sanders— U. S. Bu. Ent, Circ. 88. 



