CHAPTER XIX. 



THE INSECTS DAMAGING TO THE ORANGE TREE THE 

 NATURAL ENEMIES OF SUCH INSECTS, AND THE 

 REMEDIES TO BE APPLIED. 



UT few insects injurious to the orange tree have 

 appeared, but their ravages have now and 

 then done considerable mischief, and awakened 

 still greater apprehension. The insect which at 

 one time was considered the most injurious was 

 the long scale insect, resembling one side of a dis- 

 torted muscle-shell, and was called by Packard As- 

 pidiotus Gloverii. When it first made its appear- 

 ance in Florida it threatened universal destruction 

 of the orange groves. It first made its appearance 

 at Mandarin, Florida, about forty years ago, to 

 which place it was brought on some China orange 

 plants freshly imported from China. The insect is 

 very diminutive, and under a glass of strong power 

 has the appearance of a white louse. It is very 

 quick in its motions (its movements resembling 

 those of the chicken-mite), and conceals itself, dur- 

 ing the presence of an enemy, under the scale 

 erected for the shelter, first of the egg and then of 

 the young insect. The eggs are purple and laid in 

 two parallel rows. The insect when hatched at 



