Fig. 2.

Population growth rates (r) of the dry bulb mite engaged in host colonization tests on seven crop plant species (leek, garlic, chives, red onion, shallot, white onion and wheat) when transferred from garlic cloves without husks. Bootstrapped 95% confidence intervals around means of r are shown. The broken line (r = 1) indicates no change in population size. Treatments with the same letter were not significantly different (least significant difference test)