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Table 2 Percentage of increase or decrease in population densities of Coccinella undecimpunctata adults in untreated and sulfur-treated marrow cultivations

From: Impact of sulfur dust application on the abundance of two important coccinellid predators in marrow fields

Inspection periods (hours) First area Second area
Treated plot Untreated plot Untreated area
% Increase/decrease
(−) 0
(+) 2 − 58.02 + 62.64 + 63.53
(+) 12 − 48.15 + 80.22 + 71.76
(+) 24 − 43.21 + 70.33 + 81.18
(+) 48 − 14.81 + 38.46 + 9.41
(+) 72 + 6.17 + 1.10 − 7.06
(+) 7 days + 25.93 − 23.08 − 36.47
  1. Before application (−), after application (+)