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Table 2 Average number and reduction% of Thrips tabaci after application of plant extracts and Aerosil 200® in an onion field compared to that of the control field

From: Effect of different plant extracts and nanoparticles on Thrips tabaci (Lind.) (Thysanoptera: Thripidae) under field conditions and their allelopathic potential on the onion, Allium cepa L. using bioassays and RAPD analysis

CompoundAerosil 200®Trigonella foenum-graecumMentha arvensisMatricaria chamomillaCinnamomum camphoraUntreated control
concentration2ml/l4ml/l4000 ppm8000 ppm4000 ppm8000 ppm4000 ppm8000ppm4000 ppm8000 ppm
Pre-treatment41.65±5.241.05±4.843.75±3.639.9±3.541.25±4.246.9±4.4
After 24 hrs13.95±3.45.65±1.815.5±3.66.45±3.714.75±3.04.75±1.917.35±3.68.45±3.111.1±2.42.95±0.938.95±4.1
Reduction %59.6783.6654.5381.0859.4086.9247.6474.4967.5991.38-
After 3 days8.2±1.83.65±1.410.95±3.93.9±2.110.9±4.53.45±2.314.1±3.55.35±3.15.7±2.32±1.134.95±7.7
Reduction %73.5888.2464.2087.2566.5689.4152.7582.0081.4593.49-
After 7 days11.3±3.16.35±1.912.2±2.98.85±3.912.5±5.38.55±1.614.65±3.97.25±3.311.9±4.65.5±1.830.4±6.7
Reduction %58.1476.47854.1466.7355.9269.8543.3571.9655.4979.42-
After 10 days17.1±2.411.45±2.618.65±3.412.65±3.917.25±5.211.95±4.422.45±5.012.9±4.213.5±3.29.55±1.728.55±5.9
Reduction %32.5554.8325.3649.3735.2255.1228.1546.8846.3261.96-
  1. Average number ± SD (standard deviation)