Lethal yellowing susceptibility of date palms in Florida. - (:unkn) unknown (1992 : [Publisher not identified])
The true date palm, Phoenix dactylifera, as well as P. canariensis, P. reclinata, P. rupicola, and P. sylvestris have been reported to be susceptible to Lethal Yellowing (LY) in Florida. Field estimates, but not experimental data,. indicating differences in the degree of susceptibility of Phoenix spp. to LY are available and these are assumed to be imprecise because of inherent biases in field observations and uncertain genetics of date palm species in Florida. In a preliminary field trial of cultivars of the true date palm, 94.1 percent of the palms eventually developed symptoms of LY. However, because 'Halawy' date palms survived longer than individuals of other cultivars, this cultivar in being tested again. Evidence is presented that when true date palms contract LY, the lateral shoots may survive and grow into mature palms.
10 referencias.
The true date palm, Phoenix dactylifera, as well as P. canariensis, P. reclinata, P. rupicola, and P. sylvestris have been reported to be susceptible to Lethal Yellowing (LY) in Florida. Field estimates, but not experimental data,. indicating differences in the degree of susceptibility of Phoenix spp. to LY are available and these are assumed to be imprecise because of inherent biases in field observations and uncertain genetics of date palm species in Florida. In a preliminary field trial of cultivars of the true date palm, 94.1 percent of the palms eventually developed symptoms of LY. However, because 'Halawy' date palms survived longer than individuals of other cultivars, this cultivar in being tested again. Evidence is presented that when true date palms contract LY, the lateral shoots may survive and grow into mature palms.
Keywords: Amarillamiento letal; Enfermedades de las plantas.; insectos vectores; Myndus crudus.; Palma de aceite