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CUIA 
Notes on observations during July, 1931 
By I... Dean Christ enson 
Cuba Sugar Club Experiment Station 
Baragua, Cuba 
Cutv:orns have been observed doing some damage to truck crops in the 
vicinity of 3ara~;ua. Concentrations of these pests were lacking, however, 
and injury as a whole was slight. 
Feeding on the leaves of sugarcane ratovns oy the lnrval stage of Mo nodes 
del to ides Mosch. (det. by Schaus) was reported from- Central Cuba, Hntanzas 
Province. 
Cir-phis latiuscula E.-Schf. has been reported on sugarcane ratoons at 
Centrals Ciiba and. Socorro. The damage was not severe and the infestations 
were local in character. 
Alabama argillacea Hbn. was collected on cotton at Baragua during the 
last week of June and the first two weeks of July. The infestation was light. 
The cotton was 1 to 2 feet high and small bolls had formed. 
The velvet bean caterpillar, Anticarsi a gemmatili s Hbn., was present on 
velvet beans at Baragua during the latter part of June and the first two 
weeks of July. The infestation was not severe although damaging. 
An unidentified species of Miridac has been extremely injurious to Cro- 
talaria at Baragaa. Crotalari a ritusa was most severely attacked, being com- 
pletely destroyed. The insect was ^resent on other species of this legume 
in damaging numbers. It confines its feeding almost entirely to the leaves 
of the plants. 
Utcthcisa venust a Dalman is -present on Crotalaria. The larval stage in- 
jures all species by. feeding on the leaves and, in addition, by infesting 
the pods. It is only moderately abundant, being heavily prro.sitized in the egg 
stage by Trichogramma and being the host of larval parasites as well. 
Sticlla zinckenella Treit. is doing considerable damage to the pods of 
Croto.laria incana . Of several species of Crotalaria growing in adjacent 
plots, C. i near a was the only one attacked. 
The citrus blackfly, Aleurocanthns wog lumi Ashby, is abundant on citrus 
trees examined in Camaguey Province. In Cuba this pest is present through- 
out all seasons of the year. 
A-ohis aaidis Pitch was observed in damaging quantities on field corn in 
extensive plantings of this crop in the vicinity of Baragua. The lice appeared 
in numbers soon after the emergence of the tassels from the central leaf rolls. 
On small plants they have not been noted. 
