the conditional pesticide load was calculated as the sum, over all applied products, of the product of each preparation's application rate by its relative hazard coefficient, expressed as a percentage of the full chemical standard (A2 = 100 %); the control and full-biological treatments received no synthetic pesticides (0 %); treatments A4–A6 used a single reduced-rate fungicide treatment plus a reduced-rate herbicide, yielding a load of 35 % of the standard; the reported overall reduction of 58–68 % refers to the season-cumulative load relative to A2 across the experimental years and accounts for the omission of repeated chemical fungicide and insecticide applications used in A2; the per-treatment value of 35 % and the cumulative reduction of 58–68 % are therefore mutually consistent