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Table 3 Effect of BKN20 5%AS on the yield of harvestable shoots of tea

From: Beauveria bassiana: as a potential microbial biocontrol agent for tea mosquito bug, Helopeltis theivora Waterhouse (Hemiptera: Miridae) in Dooars and Darjeeling, India

Treatments Concentration (ha) Green leaf yield* (kg/plot) Processed tea (kg/ha/year)
BKN20 5%AS 600 ml$ 2.51cd ± 0.19 390.5 ± 4.25
  800 ml$ 2.55bc ± 0.18 396 ± 4.36
  1000 ml$ 2.61ab ± 0.16 405 ± 4.45
  1200 ml$ 2.63a ± 0.23 408.5 ± 4.21
Beauveria bassiana 1.15% WP 2500 g 2.50de ± 0.29 388 ± 4.19
Thiamethoxam 25%WG 120 g 2.65a ± 0.22 411 ± 4.37
Untreated control 2.43e ± 0.14 378 ± 4.25
F value   8.2 15.5
p value   0.003 < 0.0001
  1. *Values represent the mean of three replications ± SE, for green leaf yield (obtained from six rounds of leaf plucking after treatments at weekly interval for two consecutive seasons)
  2. $Containing 2 × 107 conidia/ml. Values in the same column followed by the same letter are not significantly different from each other at the 95% confidence interval (p < 0.05) using Tukey’s post-hoc Honestly Significant Difference (HSD) test
  3. Market product