caa a22 4500 386375135 CHVBK 20180307112015.0 cr unu---uuuuu 161130e198902 xx s 000 0 eng 10.1017/S1742758400003350 doi S1742758400003350 pii (NATIONALLICENCE)cambridge-10.1017/S1742758400003350 Density and parasitization of grasshopper egg-pods in Pakistan [Elektronische Daten] A total of 1244 egg-pods of 12 grasshopper species were collected — 26.7% were from low altitude hills, 23% from Swat valley, 22.1% from Punjab plains, 19.4% from Peshawar region and 8.8% from Potohar plateau. Aiolopus thalassinus was the dominant species comprising 27.7% of the total pods. This was followed by Shirakiacris shirakii (24.5%), Oxya multidentata (13.6%), Trilophidia annulata (9.7%), Spathosternum prasiniferum (9.7%), Atraetomorpha acutipennis(7.4%), Stenohippus sp. (3.8%) and Phlaeoba punteli (1.8%). Others were rare being less than 1%. Egg-pod density was effected by several closely related factors. Mean annual temperatures (15.6 − 23.4°C) and average precipitation (310 − 2100 mm) of the localities were not the ultimate controlling factors. Parasitism however, appears to play an important role. Highest parasitism of Scelio spp. was 10% on the Potohar plateau where egg-pod population was lowest. A. thalassinus was the most preferred host(41.7%) followed by S. prasiniferum (35.4%), S. shirakii (14.6%), O. multidentata (8.3%), T. annulata and Stenohippus sp. (2.1% each). Soil-type (clay-loam, loam, sandy-loam) and type of vegetation(cultivated area, grasslands) also have a considerable bearing on the microclimate in which the insects live. Copyright © ICIPE 1989 Grasshopper nationallicence egg-pod nationallicence population nationallicence parasitism nationallicence Scelio spp nationallicence Mahmood Tahira Z. National Agricultural Research Centre, Pakistan Agricultural Research Council P.O. National Institute of Health, Chakshahzad, Park Road, Islamabad, Pakistan Qazi M. H. Quaid-e-Azam University, Islamabad International Journal of Tropical Insect Science Cambridge University Press 10/1(1989-02), 63-68 1742-7584 10:1<63 1989 10 JTI https://doi.org/10.1017/S1742758400003350 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1742758400003350 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mahmood Tahira Z. National Agricultural Research Centre, Pakistan Agricultural Research Council P.O. National Institute of Health, Chakshahzad, Park Road, Islamabad, Pakistan NATIONALLICENCE 700 1- Qazi M. H. Quaid-e-Azam University, Islamabad NATIONALLICENCE 773 0- International Journal of Tropical Insect Science Cambridge University Press 10/1(1989-02), 63-68 1742-7584 10:1<63 1989 10 JTI CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge