Fig. 1.
Mean numbers of B. longicaudatus per 100 cm3 of soil assayed from 6 wk before to 16 wk after nematicide treatment during experiment 1 (A) and experiment 2 (B), respectively. Error bars indicate standard error of individual population means. Nontreated = no added soil disturbance or nematicide treatment; Mechanical = soil disturbance without nematicide; Nematicide = injection of 1,3-D at a rate of 55 kg a.i./ha (46.76 liters/ha) at 13 to 17 cm of soil depth. * Nematicide-treated different from nontreated (P ≤ 0.05).