Maqsood Anwar Rustamani

Key to the Tribes and Genera of Deltocephaline Leafhoppers (Auchenorrhyncha, Hemiptera, Cicadellidae) of Pakistan

Abstract A key with accompanying figures is provided for the 14 tribes and 35 genera of Deltocephalinae (Cicadellidae) from Pakistan.

Population Density of Foliage Insect Pest on Jujube, Ziziphus mauritiana Lam. Ecosystem

Jujube, Ziziphus mauritiana L. is the King of arid zone fruits, due to its adaptations to tolerate the biotic and abiotic stresses. However, the occurrence of insect pest is the major threat to reduce the quality and quantity of fruits. The current studies are the first comprehensive evidence on the population density of foliage insect pests evaluated on two different varieties, Golden Gola (susceptible) and White Kherol (resistance) at farmer’s field Tando Qaiser, District Hyderabad during 2007 and 2008. A total of 13 different insect pests which were categorized as major ( Ancylis sativa , Euproctis fraterna and Adoretus pallens ), minor ( Scirtothrips dorsalis , Amrasca biguttula biguttula , Myllocerus discolor , Achaea janata , Agrotis biconica and Aphis gossypii ) and occasional ( Oxycareous hyalinipennis , Dichromorpha viridis , Tarucus balkanicus and Orgyia postica ) based on overall population of two years. The mean population percentage of insect pests indicates the highest percentage for E. fraterna followed by A. pallens , A. biguttula biguttula , M. discolor and S. dorsalis on White Kherol, whereas, Golden Gola was severely infested and showed maximum percentage with A. sativa followed by E. fraterna , S. dorsalis , A. pallens and A. biguttula biguttula . It is concluded that A. sativa , E. fraterna and A. pallens are serious insect pests of jujube. Pest monitoring with direct count and light trap can help to determine the ETL that is most important for the management of various insect pests including these major and minor pest. The present study will hopefully be helpful for management of foliage insect pests of jujube.

Feeding Potential of Menochilus sexmaculatus (Fabricius) Against Sucking Insect Pests

This laboratory experiment was conducted to find out the feeding performance and larval development of Menochilus sexmaculatus (Fabricuis) on Aphis gossypii (Glov.), Bemisia tabaci (Ginn.) and Amrasca biguttula biguttula (Distant) at 26 ± 2ÂoC temperature and 65 ± 5% relative humidity. The result indicated that the 3 rd and 4 th instar larvae of the beetle consumed 76.20 ± 3.44 and 79.7 ± 0.77 nymphs of A. gossypii /day followed by (23.0 ± 0.77) and (23.4 ± 0.75) nymphs of B. tabaci and (19.73 ± 1.17) and (21.55 ± 0.77) nymphs of A. b. biguttula , respectively as compared to 1 st and 2 nd instar larvae. Adult female consumed maximum (101.0 ± 0.55) nymphs of A. gossypii /day followed by (26.90 ± 0.27) nymphs of B. tabaci and (22.16 ± 0.20) nymphsof A. b. biguttula as compared to male. The result further revealed that the 4 th instar larva consumed highest number 159.4 ± 7.35 of A. gossypii nymphs during its life span followed by (93.8 ± 3.02) and (86.2 ± 3.09) nymphs of B. tabaci and A. b. biguttula, respectively. Similarly, the adult female devoured highest number of nymphs (3040.2 ± 26.4) of A. gossypii followed by B. tabaci (807.0±8.1) and A. b. biguttula (664.98±6.0) during its life span as compare to male. The shortest life span was recorded on A. gossypii as compared to A. b. biguttula and B. tabaci, There was highly significant difference in consumption rate and development period of larvae and adult beetles on different prey species ( P <0.05).

Effect of Different Synthetic Pesticides Against Pink Bollworm Pectinophora gossypiella (Saund.) On Bt. and non-Bt. Cotton Crop

The field studies were conducted at the farmer’s field in 2015-2016 to determine the effect of three different insecticides (triazon, radiant and polytrin C) on Bt. and non-Bt. cotton varieties against pink bollworm. The results revealed that triazon was observed the most effective pesticide against PBW on both cotton varieties. The mortality reduction percent of 33.99 to 30.45% was recorded at triazon, 27.72 to 26.95% at radiant and 24.68 to 14.48% at polytrin C respectively, in 2015. However, in 2016 the mortality reduction percent decreased but effective trend of these selected pesticides were observed same with mortality reduction percent of 28.15 to 25.46% at triazon, 21.95 to 23.52% at radiant and 19.96 to 16.37% at polytrin C in Bt. and non-Bt. cotton varieties. In present investigation, triazon was observed the most effective pesticide than radiant and polytrin C on larvae of PBW in both Bt. and non-Bt. varieties.

Genus Exitianus (Auchenorrhyncha, Cicadellidae, Deltocephalinae, and Chiasmini) in Tando Jam, Sindh, Pakistan

Abstract Exitianus Ball, 1929 is studied from Tando Jam, Pakistan. Two species, Exitianus indicus (Distant, 1908) and Exitianus nanus (Distant, 1908), are reviewed and their characters, habitus, and line drawing are given.

Effect of Application of Micronutrients on Spotted Bollworm Earias vittella (Fabricius), Infestation and Yield Components in Cotton Crop

Studies were carried out on the effect of micronutrients on spotted bollworm, Earias vittella F. infestation and yield components in cotton crop under field conditions. Cotton variety (CRIS-134) was sown in randomized block design with seven treatments including control (check) and was replicated three times on May 22, 2004-2005. Three micronutrients Bonus ® , Dawn ® and Power ® were applied three times at 79, 95 and 109 days after sowing. The results indicated that there was no significant effect of removal of leaves and fruiting bodies on infestation of bollworm. However, application of micronutrients significantly affected the bollworm infestation. There was significant effect of micro-nutrients on boll volume and opening of bolls in different micronutrients applied plots. The maximum yield was obtained from Bonus ® applied plots than other micronutrients applied plots.