*1.2.1.4 Chemical control*

Generally, this pest attacks the crop at the cotyledonary stage when adults skeletonize the young leaves. At the time of initial infestation, applications of malathion (0.5%) or carbaryl (0.1%) minimise the damage successfully [33]. Dusting with permethrin (0.5%) alone and ash + permethrin dust (2000:1 *a.i.* w/w) provide good control against this beetles on the cucumber crop, with no phytotoxicity symptoms on the plant [34]. Synthetic pyrethroids (cypermethrin 0.012%, deltamethrin 0.004%, and fenvalerate 0.01%) were effective in suppressing the beetle population for about a week [35].
