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. 2012 Dec 13;60(2):127–138. doi: 10.1007/s10493-012-9638-6

Table 1.

Percentage of total population of predatory mites (all stages of Amblydromalus limonicus) (mean ± SE) per tomato plant in one of three strata (bottom, middle, top), 3 and 4 weeks since 10 females were released on the leaves at the bottom of a tomato plant that received c. 2,500 tomato russet mites, 4 days before predator introduction

Period Stratum Establishment success (%)
Tomato russet mites Predatory mites
3 weeks
Top 13.3 ± 2.5 0.0 ± 0.0
Middle 53.8 ± 3.5 14.8 ± 9.1
Bottom 32.9 ± 4.8 85.2 ± 9.1
4 weeks
Top 58.4 ± 5.1 11.5 ± 2.8
Middle 35.3 ± 4.6 43.6 ± 7.3
Bottom 6.2 ± 1.6 44.8 ± 8.2

Number of plants is 10 (=replicates). Data are not statistically analyzed because the differences between mean % TRM and predators in the top stratum (after 3 and 4 weeks) are much larger than 3 times their SE