38 



FROGHOPPER BLIGHT OF SUGAR-CANE. 



The areas given are only estate canes and do not include those under 

 small cultivators, who in IGIH produced about 25 per cent, of the canes 

 of the Island. 



It will be seen from this table that over 9,000 acres were infested out 

 ■of a total under estate canes of about 25,000 acres. 



1913. 



The blight in this year was very much less than in 1912 and seems to 

 have been serious only in the Couva district. The crop grown was 

 13,000 tons above that of the previous year. 



In July Waterloo Estate reported "that adults were exceedingly 

 numerous." In August there was "no extreme blight but stagnation." 

 In September "considerable damage, but not so bad as last year." In 

 October "the canes were beginning to recover," and by November the 

 froghopper had practically disappeared. 



TABLE II. 

 Summary of Damage in the Outbreaks of 1912 and 1917. 



Estate. 



1912. 



Severe. 



Slight. 



1917. 



Slight 



Estimated 



Loss of 



Cane. 



Northern Section. 

 Caroni 

 Orange Grove 



Central Section. 

 Woodford Lodge 

 Waterloo 

 Exchange Group 

 Brechin Castle 

 Esperanza 

 Forres Park ... 



■Southern Section. 

 Plein Palais... 

 Harmonj- Hall and Taronba 

 Reform 

 Williamsville 

 Oraignish 

 Hindustan 

 Malgretout Group 

 Cedar Hill ... 

 Petit Morne ... 

 Union Hall .. 

 Picton and AVellington 

 Hermitage 

 La Fortunee... 



Acres. 



1,460 



C9 



603 

 164 

 937 

 350 

 290 

 15 



41 

 125 

 30 

 nil 



153 

 40 



500 

 90 



171 

 70 

 35 



5,143 

 For 19 



Acres. 

 397 



75 



208 

 763 

 623 

 350 

 186 

 30 



73 

 327 

 110 



15 



97 

 190 

 100 

 729 

 192 

 50 

 83 



4,588 

 Estates 



Bronte and Cupar Grange sent in no returns. 



In August Urich repoi'ted that adults had been present in the cane 

 fields since -Jnly, but only in small numbers and the first brood had 

 done practically no injury to the canes. In September he reported that 

 one estate had caught 295,000 of the "first brood" since July. 



