Laurel wilt is a lethal disease of plants in the Lauraceae plant family, including avocado (Persea americana). This devastating disease has spread rapidly along the southeastern seaboard of the United States and has begun to affect commercial avocado production in Florida. The main objective of this study was to evaluate the potential to discriminate laurel wilt-affected avocado trees using aer...

Richardson and Hall, 1973a, p. 63, 1973b, p. 46; Wall, 1977, p. 55). Competition and allelopathic effects of Growth and understory species diversity of black spruce [Picea sheep laurel have been attributed to the regeneration mariana (Miller) B.S.P.] planted in central Newfoundland at contiguous sites with and without dense cover of sheep laurel (Kalmia angusfailure and poor growth of conifers ...

Cherry laurel (Laurocerasus officinalis Roemer Syn: Prunus laurocerasus L.) is a perennial wild fruit plant that is widely distributed in and around South-Eastern Black Sea, Marmara Sea, the Caspian Sea in the North and the East. However, breeding success of cherry laurel depends on early harvest, transient differences in taste, fruit color and flavor due to large number of biotic and abiotic s...

ABSTRACT Sources of inoculum were investigated for dominant hosts of Phytophthora ramorum in a redwood forest. Infected trunks, twigs, and/or leaves of bay laurel (Umbellularia californica), tanoak (Lithocarpus densiflorus), and redwood (Sequoia sempervirens) were tested in the laboratory for sporangia production. Sporangia occurred on all plant tissues with the highest percentage on bay laurel...

the antifungal potential of essential oils of thyme (thymus vulgaris l.), rosemary (rosmarinus officinalis l.), and laurel (laurus nobilis l.) was determined. to establish this antifungal potential, two molds related to feed spoilage, namely, aspergillus flavus and aspergillus parasiticus, were selected. the agar dilution method was employed for the determination of antifungal activities. the i...

LauRel is aprototype database system being developed at the University ofWaterloo. LauRel, and its query languageSQL/W, are based on an extended relationalmodel. This paper gives an overview of the language facilities supporting set valuedattributes (nested relations) and reference attributes (pointers).

ABSTRACT During 2001 to 2003, the transmission biology of Phytophthora ramorum, the causal agent of sudden oak death, was studied in mixedevergreen forest, a common forest type in northern, coastal California. Investigation of the sources of spore production focused on coast live oak (Quercus agrifolia) and bay laurel (Umbellularia californica), dominant hosts that comprised 39.7 and 46.2% of t...