THE CUBA REVIEW And Bulletin. 



19 



A view on Adam Gray's plantation. 



attack citrus trees. On the infected trees 

 he noticed the ants were very numerous 

 and to get rid of these he applied a 

 stick compound on paper, a preparation 

 called tanglefoot, which he wound about 

 the trunks of the trees, a narrow strip 

 on each. It worked like a charm, but 

 much to his surprise, the scale shortly 

 afterward also began to disappear. A 

 close and patient examination satisfied 

 him that the scale had several natural 

 enemies which kept its depredations with- 

 in bounds, if left unmolested. But the 

 ants he found were in turn the latter's 

 enemies and had well nigh exterminated 

 them, leaving, of course, the scale to 

 continue its destructive work unchecked. 

 The use, therefore, of the sticky paper 

 rid him at once of two pests, the ants 

 and the scale. He has recently been ap- 

 plying the "tanglefoot" without paper, 

 putting a band of the sticky substance 

 on the bark of the trees, say a foot above 

 the ground, and this seems to answer 

 every purpose as well as if applied on 

 paper. 



ANOTHER PEST — THE BIBIJAGUAS. 



Mr. Gray found huge nests of this ant 

 on his ground and devised many ways 

 of_ exterminating the pest, which on ap- 

 plication, were failures. The picture we 



print will give an idea of the size of 

 these huge ant hills. But one day he 

 tried sulphur and this was effectual. Men 

 dug down into the nest, made a fire 

 of charcoal and when there was a good 

 bed of coals, threw sulphur on it and 

 covered up every orifice and drove the suf- 

 focating fumes through the entire nest by 

 means of an old-fashioned blacksmith's bel- 

 lows, filling all the numberless tiny passages 

 used by the insects. Whenever smoke es- 

 caped, the earth was promptly stopped with 

 fresh soil. The length of these passages 

 was something surprising, Mr. Gray say- 

 ing that smoke was found issuing from 

 the ground circling the mound 150 feet 

 away, showing how far the underground 

 runs extended. It may be easily under- 

 stood therefore, the reason for the many 

 abortive attempts to get rid of the ants 

 by simply attacking the mound. The 

 pests at the first onslaught simply re- 

 tired to their underground tunnels and 

 remained there undisturbed until the 

 campaign for their destruction had 

 ended, and then began the building of 

 another nest. After the large nests had been 

 destroyed, he has used bisulphide of carbon 

 when he found smaller colonies at work, 

 and has had but little trouble in keeping 

 them under control. 



A thriving Orange and Grape Fruit Grove on the sime pluutaiion. 



