The effects of strawberry cropping practices on the strawberry tortricid (Lepidoptera: Tortricidae), its natural enemies, and the presence of nematodes.

comariana per m row found in the first-year fields (conventional 0.63 ± 0.14, organic 0.14 ± 0.05) was not significantly different from that in the second-year fields (conventional 0.81 ± 0.14, organic 0.11 ± 0.05) (F2,36 = 0.55, P = 0.584), whereas there was a highly significant effect of cropping practice (F1,21.1 = 11.13, P = 0.003), with a higher density of A. comariana in conventional fields (lsmeans conventional: 11.9 ± 1.9, organic 2.8 ± 1.9) and a significant effect of generation (lsmeans first generation 9.1 ± 1.7, second generation 5.7 ± 1.7) (F 1,23.5 = 4.71, P = 0.040).

also in 132,142 other papers

In 2011, when only the first generation was sampled, mortality was 26.4% (F 1,44 = 17.53, P < 0.001). A near-significant higher proportion of larvae were parasitized by C. aretas in conventional farms (24.9%) than in organic farms (15.8%) (F 1,46 = 3.9, P = 0.054).

also in 2,306 other papers