Table 3 Mite infestations per experiment. Mite levels in the two Arizona experiments were calculated as the number of mites fallen per colony per day; mite levels in the MS 2018 experiment were calculated as number of mites per 100 bees from samples of 300 bees.
From: Sublethal concentrations of clothianidin affect honey bee colony growth and hive CO2 concentration
Treatment | AZ 2017 | AZ 2018 | MS 2018 | |||
|---|---|---|---|---|---|---|
July | October | July | October | November | May | |
Clothianidin 20-ppb | 2.7 ± 0.9 | 7.8 ± 4.2 | 3.9 ± 1.3 | 18.7 ± 7.1 | 17.5 ± 6.7 | 8.9 ± 8.1 |
Clothianidin 5-ppb | 2.0 ± 0.8 | 19.8 ± 11.6 | 3.4 ± 1.7 | 16.9 ± 6.7 | 37.1 ± 12.9 | 3.7 ± 1.1 |
Control | 1.5 ± 0.7 | 15.3 ± 10.0 | 6.6 ± 2.3 | 14.3 ± 4.1 | 38.0 ± 18.7 | 5.6 ± 1.9 |
