locations on farm, but no one location was consistently infective across all farms. Furr, overall incidence of damage varied somewhat between farms. In many instances the incidence of damage rose from the about 0.7 per pot of the controls to 2.0 to 3.0 per pot. The highest incidence of symptoms was seen using dust from grading line and pre-planting holding areas of one farm, drying wall and main bulb storage area of anor farm, and planting storage area of a third. In general, highest scores were seen in dust samples from drying, grading and storage areas (Tables 2.5 and 2.6). Table 2.5: Summary of farm locations used for dust samples in 2007, with incidence of bulb-scale mite symptoms. The symptoms seen in control treatment may reflect a low level of infestation in this hot-water-treated stock or may ‘clean’ be due to causes or than bulb-scale mite Farm Location Location Symptoms Farm Location Location Symptoms no. ref. description per pot no. ref. description per pot Cleaning Control 0.7 B 0.8 5 line Cleaning B 1.7 C Drying wall 0.4 1 line Grading C Drying wall 2.0 D 1.7 line Grading D 2.2 E HWT shed 1.0 line Storage E HWT shed 1.8 F 3.0 area Storage Grading F 0.9 A 2.3 area 6 line Cleaning Grading B 0.6 B 1.4 2 line line C Drying wall 0.7 C Drying wall 1.2 Grading D 0.5 D Drying wall 1.2 line E HWT shed 1.8 E Drying wall 1.2 Storage F 1.5 F Heat 1.3 area Cleaning Cleaning B 0.5 A 1.3 3 line line 7 C Drying wall 1.7 B Drying wall 1.3 Grading D 2.6 C Drying wall 2.3 line Storage Grading F 3.0 D 1.9 area line Cleaning A 1.2 E HWT shed 1.6 4 line
locations on farm, but no one location was consistently infective across all farms. Furr, overall incidence of damage varied somewhat between farms. In many instances the incidence of damage rose from the about 0.7 per pot of the controls to 2.0 to 3.0 per pot. The highest incidence of symptoms was seen using dust from grading line and pre-planting holding areas of one farm, drying wall and main bulb storage area of anor farm, and storage area of a third. In general, highest scores were seen in dust samples from drying, grading and storage areas (Tables 2.5 and 2.6). Table 2.5: Summary of farm locations used for dust samples in 2007, with incidence of bulb-scale mite symptoms. The symptoms seen in control treatment may reflect a low level of infestation in this ‘clean’ hot-water-treated stock or may be due to causes or than bulb-scale mite Farm no. Location ref. Location description Symptoms per pot Farm no. Location ref. Location description Symptoms per pot Control 0.7 5 B Cleaning line 0.8 1 B Cleaning line 1.7 C Drying wall 0.4 C Drying wall 2.0 D Grading line 1.7 D Grading line 2.2 E HWT shed 1.0 E HWT shed 1.8 F Storage area 3.0 F Storage area 0.9 6 A Grading line 2.3 2 B Cleaning line 0.6 B Grading line 1.4 C Drying wall 0.7 C Drying wall 1.2 D Grading line 0.5 D Drying wall 1.2 E HWT shed 1.8 E Drying wall 1.2 F Storage area 1.5 F Heat 1.3 3 B Cleaning line 0.5 7 A Cleaning line 1.3 C Drying wall 1.7 B Drying wall 1.3 D Grading line 2.6 C Drying wall 2.3 F Storage area 3.0 D Grading line 1.9 4 A Cleaning line 1.2 E HWT shed 1.6 planting
BOF%2063%20Ann%20Rep%202009.docx