Insect natural enemies can develop resistance to insecticides in the field like their host insects. Recently, a high level of resistance to several groups of insecticides from Pakistan has been shown in Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae). Here, we were interested to determine the impact of insecticides resistance on fitness of various populations of C. carnea collected over three consecutive years (2005-2007) from different areas of Pakistan. The populations were examined for intrinsic rate of population increase, growth index, fertility, eggs viability, survival to adult hood and doubling time. The results of the study showed significantly higher intrinsic rate of population increase in insecticides resistant population compared with laboratory susceptible population Lab-PK. Similarly, the resistant population laid more numbers of eggs, which were significantly more viable than susceptible population. The survival to adulthood and doubling time were greater in field populations than the susceptible. The most intriguing finding was that the predation potential of all resistant populations was significantly great compared with Lab-PK. The data point to the fact that resistance to insecticides had positive impact on C. carnea, which could be used in integrated pest management system. The potential for introducing these natural enemies into cropping systems where they have not developed resistance could be a useful tactic for management of various insect pests.

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<p>Aphids or plant lice are serious pests of various crops including rose. They damage leaves directly by sucking cell sap and indirectly by excreting honeydew, which encourages sooty mold growth. This direct and indirect damage affect plant growth and development. Beetles from family Coccinellidae feed on these aphids and reduce their population in the crop field. The present study was conducted to estimate the feeding efficacy of predatory beetle, <em>Coccinella septempuctata</em> on rose aphid, <em>Macrosiphum rosae</em> in rose garden at tehsil <em>Mokhal Sandhuan</em>, district Gujranwala, Pakistan. Observations on selected rose plants were made for 30 minutes during dawn and dusk in the month of March 2019. Foraging of <em>C. septempunctata</em> on prey species of aphid was observed on different parts of rose plant (upper and lower quadrats). Predation rate of <em>C. septempunctata</em> was higher in the morning and also on the upper parts of selected rose plant.</p>