43 



and is insoluble in cold water. The habit of the larvae of L. frugiperda of 

 remaining in the heart of the maize plant was made use of in controlling 

 the insect, a small quantity of poison being dropped into the heart of 

 each plant. A mixture of lead arsenate in the proportion of 1 to 30 

 is recommended for use on young maize, while a 1 to 100 mixture of 

 Paris green and starch can be used on half-grown plants. No injury 

 to the leaves takes place. The Hesperid, Calpodes ethlius (arrowroot 

 worm) can be destroyed by Paris green and starch mixture (1 to 60). 

 The ground-nut worm and the Chrysomelid, Colaspis faslidiosa (bronze 

 beetle) on cotton have been successfully controlled by a similar mixture. 



Ballou (H. a.). Report on the Prevalence of some Pests and Diseases 

 in the West Indies during 1914. Part I. Insect Vests.— West 

 Indian Bull., Barbados, xv, no. 2, 1915, pp. 121-147. [Received 

 7th December 1915.] 



The following insect pests are recorded : — -On sugar-cane : Diatraea 

 saccharalis (moth borer), Sphenojjhorus sericeus (weevil borer), Diaprepes 

 ahhreviatus and Exophthahnus esuriens (root borers), Lachnosterna 

 jjatruelis and Lig)jrus tnnmlosns (hard back beetles), Pseudococcus 

 calceolariae (mealy bug) and grasshoppers. 



On cotton : Alabama argillacea (cotton worm), Chloridea {Heliothis) 

 and Laphygma frugiperda (boll and corn ear worm), Dysdercus andreae 

 (cotton stainer), Saissetia nigra (black scale), Hemichionaspis minor 

 (white scale), the Chrysomelid, Colaspis faslidiosa (bronze beetle), 

 ApJiis sp., Corythuca sp. (lace-wing bug), Chrysopa sp. (lace-wing fly), 

 Lachnopus sp., and Ajjhis gossypii. 



On cacao : Helioihrips rubrocinctus, Siirastoma depressum, scale- 

 insects and termites. 



On limes : scale-insects, the Longicorn, Leptostylus praemorsus 

 (bark borer), Elaphidion mite (twig borer), Diaprepes and Exophthahnus. 



On sweet potatoes : Euscepes (Cryptorrhynchus) batatas (scarabee), 

 Protoparce cingulata, Sylepta helcitalis and Tetranyckus telarius (red 

 spider). 



On ground-nuts : Nezara viridula (green bug), mealy bug and 

 Exophthahnus esuriens. 



On coconuts : Rhynchophoras palmarum (weevil), Aleurodicus cocois 

 (whitefly), and the scale-insects, Aspidiotus destructor and Vinsonia 

 stellifera. 



On maize : Laphygma frugiperda and Lachnosterna patruelis. 



On yams : Aspidiotus hartii. On green crops : Protoparce cingulata 

 on Canavalia ensiformis (horse beans), J.^/its sp. on soybean, and a red 

 spider on Indigofera snjfruticosa and C ensiformis. Miscellaneous insects 

 included : Exophthahnus esuriens on cassava, and the Longicorn, 

 Batocera rubus, on Carica papaya. The natural enemies of injurious 

 insects included the wasps Tiphia, parasitising Lachnosterna patruelis, 

 Dielis dorsata parasitising hard-back grubs, and the predaceous beetle 

 Calosoma calidmn. Fungi infesting scale-insects were Aschersonia 

 turbinata, SpJiaerostilbe coccophila, Cephalosporium lecanii and Myrian- 

 gium duriaei. A table showing the distribution of these insect pests 

 in the various islands, is appended. 



(C238) a2 



