摘要:

SummaryThe Nasonov gland pheromone of the Indian honeybee (Apis cerana indicaF.) was analysed for the first time and found to contain neral, (Z)-citral,I, as the main component.

ISSN:0021-8839    

DOI:10.1080/00218839.1988.11100803

出版商:Taylor&Francis    

年代:1988

数据来源: Taylor

摘要:

SummaryT. clareaesurvived in cages with adulees ofA. melliferaup to 25 h and withA. ceranaup to 27 h. OnA. dorsata, the maximum life span was 57 h. In an empty glass vial, the mites lived for 30 h. In similar vials with a pupa ofA. melliferathey survived for more than 5 days. DeadT. clareaecollected from theA. dorsataexperiments showed injuries which were apparently caused by the biting ofA. dorsatabees.

ISSN:0021-8839    

DOI:10.1080/00218839.1988.11100804

出版商:Taylor&Francis    

年代:1988

数据来源: Taylor

摘要:

SummaryFive layouts of 4 colonies each, were arranged on pallets to determine the amount of drifting that occurs between the colonies of each layout and to determine the relative honey production of the colonies of these layouts. There was no significant difference in the number of marked bees that drifted within 4 of the layouts but there was a significant difference in the number of marked bees that drifted within each of these four layouts and a fifth layout, where the hive entrances faced inwards. However, there was no significant difference in total honey production between the five layouts. Further, there were no significant differences in total honey production of colonies according to their position (which includes the direction they faced) both within and between layouts.

ISSN:0021-8839    

DOI:10.1080/00218839.1988.11100805

出版商:Taylor&Francis    

年代:1988

数据来源: Taylor

摘要:

SummaryGroups of 100 marked drones of known ages were introduced into colonies on different dates throughout 1980 and 1981. The number of drones surviving was measured every 2–4 days. Drone acceptance ranged from 8–88% and was correlated with environmental conditions at the time of introduction. Most loss of drones occurred within 24 h after introduction. The initial acceptance of drones showed positive simple correlations with mean daily temperature (r= 0·82,P<0·001, in 1980) and the number of hours of sunshine (r= 0·58,P<0·0007, in 1980, andr= 0·39,P<0·01, in 1981) and was negatively correlated with daily precipitation (r=−0·44, P<0·0001, in 1980) and relative humidity (r=−0·51, P<0·0007, in 1981). Significant partial correlations were found between the initial acceptance of drones and temperatures (r= 0·67, P<0·05, in 1980, andr= 0·51,P<0·05, in 1981) and with relative humidity (r=−0·58,P<0·5, in 1981).Queenless colonies accepted more drones (66%) than did queenright colonies (33%), but the survival rates of drones in queenless and queenright colonies were not significantly different. The mean longevity of adult drones ranged from 13–15 days (median 11–13 days) and did not vary significantly with seasonal changes in nectar flow. Survival rates of drones were not reduced by their drifting behaviour.

ISSN:0021-8839    

DOI:10.1080/00218839.1988.11100806

出版商:Taylor&Francis    

年代:1988

数据来源: Taylor

摘要:

SummaryHoneybees became adapted to synthetic alarm pheromone components dispensed within their hives and were less inclined to sting. The reduction in the stinging response of honeybee colonies which were adapted to 6 or 8 alarm pheromone components was no more than in colonies adapted to 3 components only.

ISSN:0021-8839    

DOI:10.1080/00218839.1988.11100807

出版商:Taylor&Francis    

年代:1988

数据来源: Taylor

摘要:

SummaryLongevity, duration of hive-bound period, and foraging period, of worker bees, infested or not infested during their pupal development, were investigated during the whole year. Shortening of lifespan depended on the extent of infestation and on season. Influence of infestation on lifespan could be shown during hive-bound and foraging periods; no influence could be shown on flight activity. Drastic differences occurred during winter; in 4 observation hives, only 4–18% of the infested bees that had emerged in September, survived until the following March.

ISSN:0021-8839    

DOI:10.1080/00218839.1988.11100808

出版商:Taylor&Francis    

年代:1988

数据来源: Taylor

摘要:

SummaryForty-seven hives were treated with various preparations of Oxytetracycline (OTC). OTC activity was detected in larval samples collected from all treated hives. The peak concentration was always above the minimum inhibitory concentration of OTC toMelissococcus plutonwhich was determined to be 3·8μg/ml. The period of detectable OTC ranged from 1 to 9 days and the highest OTC larval concentration in hives following treatment varied from 10 to 184μg/g of larval material.

ISSN:0021-8839    

DOI:10.1080/00218839.1988.11100809

出版商:Taylor&Francis    

年代:1988

数据来源: Taylor

摘要:

SummaryNectar and honey samples from alfalfa, alsike, canola, red clover, sweet clover and trefoil were examined for monosaccharides (glucose and fructose) and oligosaccharides. Other than sucrose in all the nectars except canola nectar, and a minute amount of maltose in alsike nectar, no oligosaccharides were found in any nectar sample. It was shown that the oligosaccharides that were found in the honey samples were present in similar amounts and seemed to originate from the enzyme activity ofα- andβ-glucosidase. Many of the oligosaccharides found in honey could be formed by addition of isolated honeyα- andβ-glucosidase to a nectar-like carbohydrate solution. Examination of honey samples fromApis dorsata, Apis ceranaandApis floreaillustrated that the oligosaccharide patterns were very similar to those found in theApis melliferahoney samples.

ISSN:0021-8839    

DOI:10.1080/00218839.1988.11100810

出版商:Taylor&Francis    

年代:1988

数据来源: Taylor

摘要:

SummaryThere is increasing interest in the use of honey for the treatment of bacterial infections. Because of the variation known to occur between different honeys in the strength of antibacterial activity, it is important to choose the right type of honey for medicinal use. A range of New Zealand monofloral honeys was assayed to compare their antibacterial activity. Solutions of each honey, at concentrations 1/4, 1/8, and 1/16 of the original, were tested in an agar well, diffusion assay againstStaphylococcus aureus.Highly significant differences in activity were found between the honeys. Some inconsistencies were seen in the results, possibly owing to the inaccuracy of identification of the honeys (pollen analysis was not carried out). However, the more active honeys in general, were kanuka, manuka, and penny royal. Nodding thistle, kamahi and buttercup honeys had lower activity. The honeys with lowest activity were found to be rewa-rewa, clover, heather, tawari, rata, towai, thyme and blue borage. Firm conclusions could not be drawn on the relative activity of most of the types of honey because of the small number of samples obtained from each type. However the activity of manuka honey was significantly higher than that of clover and heather/ling honey.

ISSN:0021-8839    

DOI:10.1080/00218839.1988.11100811

出版商:Taylor&Francis    

年代:1988

数据来源: Taylor

ISSN:0021-8839    

DOI:10.1080/00218839.1988.11100812

出版商:Taylor&Francis    

年代:1988

数据来源: Taylor