PEACH PESTS 



1563 



only six legs. Later they become olive 

 green or brown and have eight legs. They 

 feed principally upon the leaves, occa- 

 sionally attacking the fruit, and may be 

 detected by the faded-out appearance of 

 the foliage. 



Toiitrol 



Spray with lime and sulphur. This 

 not only kills the adults, but also de- 

 stroys the young mites as they hatch. 

 Sprays such as emulsions, resin wash 

 and soap solutions are efficient remedies, 

 but these are usually too destructive to 

 the tender leaves of the plant to be prac- 

 ticable. The flour paste spray made of 

 four pounds of flour in one hundred gal- 

 lons of water and one gallon of lime- 

 sulphur solution is especially recom- 

 mended for mites. 



Buffalo Tree Hopper. See Apple 

 Pests. 



California Peach Borer. See West- 

 ern Peach and Prvaie Borer. 



Canker Worm. See Apple Pests. 



Citrus Red Spider. See Apple Pests. 



Citrus Thrlps. See Pear Pests for 

 control of thrips. 



Climbing Cutworm. See Apple Pests. 



Common Termite. See Apricot Pests. 



Cottony Maple Scale. See Apple Pests. 



Eastern Tent Caterpillar. See Apple 

 Pests. 



European Fruit Scale. See Apple 

 Pests. 



Ete-Spotted Bud Moth. See Apple 

 Pests. 



Fall Web Worm. See Apple Pests. 



Flat-Headed Borer. See Apple Pests. 



Forest Tent Caterpillar. See Apple 

 Pests. 



Frosted Scale. See Prune Pests. 



F^uiT Bark Beetle. See Apple Pests. 



Fruit Thee Pulvinaria. See Prune 

 Pests. 



Green Stink Buer of the Peach 



Nezara hilaris 

 The green stink bug of the peach some- 

 times does great injury to the fruit of 

 the peach. It is also a great nuisance 

 in the orange groves of Florida, causing 

 the fruit to fall because of its punctures. 

 The damage commences in early summer 



when the young nymphs thrust their 

 sucking, needle-like beaks into the young 

 fruit to imbibe the sap. Damage is con- 

 tinued until late in the fall. The fruits 

 become rough and knotty, somewhat 

 shriveled, flecked over with drops of ex- 

 uding gum, and the pulp is hardened 

 along the line of puncture. The injured 

 fruit is quite persistent to the tree and 

 does not drop. The development of the 

 insect in excessive numbers seems to de- 

 pend upon some climatic factor, possibly 

 a succession of dry seasons. With aver- 

 age conditions It attracts comparatively 

 little attention. Not enough is known of 

 its life-history and habits to warrant 

 specific recommendations. There are 

 some grounds for believing that dense 

 cover crops in the orchard encourage its 

 multiplication. tt a ^ 



H. A. GOSSARD 



Ohio Agricultural Experiment Station Bulle- 

 tin 233. 



Geeen Apple Worm. See Apple Pests. 



Hemispherical Scale 



Saissetia hemisphaerica Targ. 



General Appearance 



This species is not quite as large as 

 the black scale. Regular and oval in 

 shape with polished surface and rich 

 brown color without markings. 



Life History 



The eggs are very minute and vary 

 from pearly-white to cream color. The 

 life history is practically the same as 

 that of Saissetia oleae. On citrus trees 

 the scales are often found around the 

 margins of the leaves, but on other 

 plants the stems and foliage are attacked. 

 Not a serious pest. 



Food Plants 



The pest has a wide range of food 

 plants. Works upon the foliage and 

 stems, but is occasionally found upon 

 citrus fruits. 



Control 



On deciduous fruits and olive trees the 

 following sprays may be used when the 

 scales are no more than half grown: 

 Water distillate, distillate, caustic soda, 

 mechanical mixture and distillate emul- 

 sion. 



