A FORTNIGHTLY REVIEW 



OF THE 



IMPERIAL DEPARTMENT OF AGRICULTURE FOR THE WEST INDIES. 



Vol. VTT. No. 167 



BARBADOS, SKlTE^rHEIl 19, 1908. 



Price Id. 



CONTENTS. 



PA(ili. 

 Aniiatt", Pi-iiductidii and 



Usu.s (,f 2!»7 



Bailwidns Industrial ScIkhiI, 



Agiicidtural Wurk at ;W1 

 Barl>ad. >s PI. xighing Match. 



Intfivstiiig Animals at 'J'Xi 

 British (iuiana. E.\|iiirts 



friini 2m» 



British (iuiana Rice ('nip... .SO:} 



Cacao in Sanma 2'.>'.l 



Oauiphiir Priiductiim, 



Increasing 301 



Citrnne-Ua ( til 802 



Ciiti't'e Preparatiiin and 



.Shi]inifnt "_'!•;'. 



C'ottfin Kntes :- - 



Ci.>tton in the Sea Islands L".t4 

 Ciitton Niites friiui 



St. Kitt's 2!»4 



Lancashire Cdttnn (."(in- 

 ference and Imperial 

 Dejiartment nf Agri- 

 culture ... .r. ... 2!t4 

 West Indian Cottim ... 2!M 

 Onttcin-seed Meal Fed to 



Hogs 2!t(> 



Page. 



] Fruit (irowing in Jamaica 292 

 (jringer Production in 



I Ja!iiaica 



( (ileanings 



Dominica Limes at 



Canadian Exliil>itions 

 Lead Arsenate as an 



Insecticide 



Live Stock Insurance 

 Mango (irowing in (_'u)ia 



Market Ke])orts 



Notes and Conniients ... _.,,, 

 Palm Trees and Their I'ses 2'.tS 



Persiwal Note 2".« 



Plantati.m Rulilier, 



Prc]jarati(in of... 

 Kuliber from Trinidat 

 Sugar Industry :- 

 Sugar-cane, Enzymes of 



2".Mi 



aoo 



2'.t7 



2.S'.t 

 .M02 

 2! 12 

 ■.'<U4 

 2! Mi 



.. 2'.t8 

 .. 2!t7 



th 



291 



Sugar Production in Java 291 

 Water Prolilem in Agri- 

 culture, The 29r> 



West ln<l an Products ... .SOa 

 Young Cotton and Old 



Cotton 297 



Lead Arsenate as an Lisecticide. 



\-^sui, URING the present cotton-growing season 

 lead arsenate will be tried on several 

 estates in Barbados as an insecticide in 

 combating the cotton worm. For the past iive years 

 Paris green has been the standard material for this 

 purpose, and all other insecticides have been compared 

 with it, in judging their value. It has been almost 

 universally applied in a dry condition, mixed with air- 



slaked lime in the proportion of 1 It), to 6 lb. of lime,, 

 although many other proportions have been tried. 



Paris green has been iised with good results in the 

 fight against the cotton worm, but there are certain 

 disadvantages connected with the use of this material. 

 It is in the hope of getting an equally ettective insecti- 

 cide, and at the same time of doing away with some of 

 the disadvantages attendant on the employment of 

 Paris green, that lead arsenate is being tried this year. 

 The hope that this insecticide will prove satisfactory for 

 the purpose is strengthened by the restdts of rather 

 e.vtensive trials carried out on one estate at Barbados 

 last season. 



The advantages attending the use of Paris green 

 are that it is quick in its action, easy of application,, 

 and cheap in cost. It ni.ay be applied in a drv form 

 to thy cotton plant by means of ver}- simple iipparatns. 

 The disadvantages connected with the use of this 

 material are, that when applied as a dust, it is easily 

 washed off by showers of rain ; that when large 

 amounts are used, it often burns or scorches the 

 leaves of the cotton plant, and that it sometimes has an 

 irritating effect on the skin of the labourers, which 

 frequently makes them unwilling to do the work of 

 dusting. This is a serious matter when the attacks of 

 the cotton worm are so severe that it is necessar\' to 

 apply Paris green immediately. Much may be done 

 to obviate this last difficulty by care on the part of the 

 overseeis to ensure that the labourers keep a distance 

 of several raws-from eack other in the field, and on the 

 part of the labourers themselves to keep as much as 

 possible to windward of the poison they ai'c applying. 



Lead arsenate was first use(i as an insecticide by 

 the Gypsy Moth Committee in Massachusetts. It had 



