author(s)
PS Chopkar, RM Samrit, RJ Choudhari, AL Uparkar and SB Shelke

abstract
The research project entitled “Pest management in Lablab bean (Lablab purpureus L.) by using border crops” was undertaken at Agronomy Farm, College of Agriculture, Dapoli during rabi 2016-17. The natural enemies like black ants, spiders, lady beetles and chrysopids were noticed throughout the cropping period starting from week 1 (1st week of January) till harvest of the crop i.e. week 12 (3rd week of March). The average numbers of black ants on lablab bean plants were in the range of 0.00 to 0.09 and maximum 0.09 ± 0.04 black ants were recorded in the treatment Cowpea followed by Safflower (0.05 ± 0.04), Marigold, Coriander and Control (0.04 ± 0.04). The average numbers of black ants on flowering plants were in the range of 0.00 to 0.48 and maximum 0.48 ± 0.16 black ants were recorded in the treatment Cowpea. The average number of spiders observed on lablab bean plant was in the range of 0.26 to 0.47. The maximum spiders (0.47 ± 0.12) were recorded from the treatment Coriander followed by Mustard (0.44± 0.12), Sunflower (0.44 ± 0.12), Safflower (0.43 ± 0.12), Sweet corn (0.43 ± 0.12), Marigold (0.41 ± 0.12), Cowpea (0.37 ± 0.12) and Sesame (0.36 ± 0.12). Data on average number of spiders observed on flowering plants was in the range of 0.00 to 0.63. The maximum spiders (0.63 ± 0.22) were recorded from the treatment Sweet corn followed by Marigold (0.44 ± 0.22), Sesame (0.44 ± 0.22), Sunflower (0.44 ± 0.22), Mustard (0.36 ± 0.22), Coriander (0.35 ± 0.22) and Cowpea (0.29 ± 0.22). The average number of lady beetles observed on lablab bean plants was in the range of 0.13 to 0.37. The maximum of 0.37 ± 0.13 lady beetles were recorded in the treatments Sunflower as flowering plant followed by Control (0.21 ± 0.13), Coriander (0.18 ± 0.13), Marigold (0.17 ± 0.13), Safflower (0.17 ± 0.13) and Sweet corn (0.17 ± 0.13). The average number of lady beetles observed on flowering plants was in the range of 0.00 to 2.69. The maximum of 2.69 ± 0.92 lady beetles were recorded in the treatments Sweet corn as flowering plant followed by 1.10 ± 0.92 in Sunflower. The pooled mean number of Chrysopids observed on lablab bean plants was in the range of 0.00 to 0.36. The maximum of 0.36 ± 0.38 Chrysopids were recorded in the treatments Mustard as flowering plant. The pooled mean number of Chrysopids observed on flowering plants was in the range of 0.00 to 0.56. The maximum of 0.56 ± 0.44 Chrysopids were recorded in the treatments Sweet corn as flowering plant followed by 0.47 ± 0.44 in Coriander. The Syrphid flies were noticed from week 6 (1st week of February) till harvest of the crop i.e. week 12 (3rd week of March). The pooled mean number of Syrphid flies observed on lablab bean plants was in the range of 0.01 to 0.08. The maximum of 0.08 ± 0.05 Syrphid flies were recorded in the treatments Mustard as flowering plant followed by Safflower (0.07 ± 0.05), Sesamum (0.07 ± 0.05), Coriander (0.06 ± 0.05 ) and Control (0.05 ± 0.05). The pooled mean number of Syrphid flies observed on flowering plants was in the range of 0.00 to 0.42. The maximum of 0.42 ± 0.14 Syrphid flies were recorded in the treatments Safflower as flowering plant.