THE FIRST RECORDS OF THE MOSAIC DISEASE OF SUGAR-CANE IN PUERTO RICO

A mosaic disease of papaya is reported; characterized by stunting, with accompanying reduction in size of internodes, leaves and petioles, oily spots on stem and petioles, marked mottling and distortion of leaves, uninterrupted latex flow, and dark-green to brown rings on fruits. The disease is transmitted by pin puncture, rubbing with carborundum and stem grafting. The similarities and differences in symptomatology between this disease and others of similar nature reported from other parts of the world, are presented. The disease is, however, believed to be closely related to, if not identical with, the mosaic type "B" from Cuba.

Download Full-text

The Control of Grass Weeds in Sugar-Cane Fields in Puerto Rico

Science ◽

10.1126/science.108.2796.112 ◽

1948 ◽

Vol 108 (2796) ◽

pp. 112-113 ◽

Cited By ~ 4

Author(s):

J. A. B. NOLLA

Keyword(s):

Puerto Rico ◽

Sugar Cane

Download Full-text

A comparison of four model specifications for describing small heterogeneous space-time datasets: Sugar cane production in Puerto Rico, 1958/59-1973/74*

Papers of the Regional Science Association ◽

10.1111/j.1435-5957.2008.00188.x ◽

2008 ◽

Vol 87 (3) ◽

pp. 341-355 ◽

Cited By ~ 9

Author(s):

Daniel A. Griffith

Keyword(s):

Puerto Rico ◽

Sugar Cane ◽

Space Time

Download Full-text

STUDIES ON THE MOSAIC OF PEPPERS (CAPSICUM FRUTESCENS) IN PUERTO RICO

The Journal of Agriculture of the University of Puerto Rico ◽

10.46429/jaupr.v25i4.3523 ◽

1969 ◽

Vol 25 (4) ◽

pp. 40-50

Author(s):

Arturo Roque ◽

José Adsuar

Keyword(s):

Puerto Rico ◽

Mosaic Disease ◽

Breeding Program ◽

Capsicum Frutescens ◽

Commercial Variety ◽

Agricultural Experiment Station ◽

Crop Losses ◽

First Report ◽

Varietal Susceptibility ◽

Agricultural Experiment

A mosaic disease of peppers causing stuntiness of the plant and severe malformation of the fruit appeared in epidemic form about three years ago in the Agricultural Experiment Sub-station at Isabela. Since then it has spread with great rapidity and intensify throughout that region and has also been found causing serious damage in other important vegetable sections of the island. Serrano and Riollano (6) estimated the crop losses due to mosaic for Isabela from 50 to 60 percent in the season of 1938 and stated that further plantings were, in their opinion, a risky proposition. The first report of pepper mosaic in Puerto Rico known to the writers is that made by Cook (2) in 1927-28. Since then, no effort has been made to study the disease and to determine the virus or viruses involved. In connection with a breeding program to develop a commercial variety of peppers resistant to mosaic, studies to determine the prevalence, distribution, properties of the virus and varietal susceptibility were undertaken. The experiments were conducted in the Agricultural Experiment Station at Rio Piedras during the years 1939-41.

Download Full-text