Sonika Sharma

Haematological and Biochemical Studies in Setariasis in Buffaloes

Abstract Kumar, M. and Sharma, S.P. 1994. Haematological and biochemical studies in setariasis in buffaloes. J. Appl. Anim. Res., 5: 41–46. Haematological and biochemical studies in 92 buffaloes showing microfilariaemia indistinguishable to Setaria spp. revealed a significant increase in erythrocytic sedimentation rate (103.25 ± 6.82 mm/hr) and decrease in haemoglobin (9.65 ± 0.74 g/dl), packed cell volume (28.07 ± 1.35%) and also total erythrocyte count (5.34 ± 0.09 x 10/μl). The biochemical analysis indicated higher levels of total proteins (7.16 ± 0.53 g/dl), cholesterol (217.35 ± 14.27 mg/dl) and blood urea nitrogen (11.42 ± 1.25 mg/dl), and lowered level of blood glucose (24.36 ± 2.16 mg/dl) sodium (108.07 ± 7.73 mEq/l) and potassium (4.15 ± 0.52 mEq/l). The serum creatinine level, however remained unaffected (1.17 ± 0.22 mg/dl).

Seasonal Activity and Abundance of Natural Enemies and Performance of Coccinella septempunctata on Rose Aphid, Macrosiphum rosae (Linn.)

Rose is one of the most beautiful ornamental flowers in the world, and as such it can be found in many houses and gardens in cities due to its especial characteristics such as stability, long period of floral initiation, different varieties, and, of course, its beauty. Rose as a plant is found everywhere and is cultivated widely in most parts of the world. Furthermore, cut rose flower is regarded as one of the best cash crop ornamental flowers. Rose is attacked by numerous pests; amongst them, aphids are considered as a major pest. Aphids have a very successful worldwide distribution. Their damages to plants may be direct or indirect: direct damage is due to aphids’ intense feeding on plant sap, which will wilt the plant and decrease the yield; indirect damage comes as a result of honeydew excretion and virus transmission. Excretion of honeydew promotes the growth of sooty mould on the plant surface, so photosynthesis will be disturbed and crop yield will be decreased. The rose aphid, Macrosiphum rosae (Linnaeus, 1758) is a cosmopolitan species due to the world-wide cultivation of roses (Blackman and Eastop, 2000). This aphid is the most important pest of roses and is probably native to Eurasia and International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 6 Number 10 (2017) pp. 2923-2927 Journal homepage: http://www.ijcmas.com

Screening for resistance in wheat against aphid Sitobion avenae F.

Relative resistance in wheat 10 varieties/genotypes against aphid, Sitobion avenae F. was evaluated under the field conditions at the University Research Farm, Sher-e-Kashmir University of Agricultural Sciences & Technology- Jammu, Main Campus, Chatha during rabi 2010–11 and 2011–12. A lone variety RSP-561 was found to be resistant, while, HI-1454, HI-1544, PBW-373, JAUW-584, PBW-343, DBW-17 and RAJ-3765 were moderately resistant. Others were categorized as susceptible which included HI-1500 and PBW-175 susceptible check. It was observed that leaf area had a significant negative correlation with aphid population.

Seasonal incidence and management of wheat aphid, Sitobion avenae (F.)

Experiments conducted on the seasonal incidence of Sitobion avenae F. during 2010–2011 and 2011–2012 at the University Farm of Sher-e-Kashmir University of Agricultural Sciences and Technology-Jammu revealed that it was @ 2.16 aphids/shoot in the 5th standard week and reached maximum (10.04 aphids/shoot) in the 11th standard week. The maximum and minimum temperatures had positive and significant effect (r = 0.719* and r = 0.565*), while relative humidity and rainfall had negative and significant correlation (r = - 0.425* and r = - 0.462*). Imidacloprid 200SL (0.008%) was the most effective in reducing population followed by thiamethoxam 25WG (0.0125%), dimethoate 30EC (0.03%), oxy-demeton methyl 125EC (0.03%), quinalphos 25EC (0.05%), clothianidin 50WDG (0.025%), acetamiprid 20SP (0.06%), flubendiamide 480SC (0.003%) and neem seed kernel extract (NSK) (5%). The maximum yield was recorded with imidacloprid (32.65 q ha−1) followed by thiamethoxam (31.72q ha−1) and dimethoate (30.59 q ha−1). The highest cost:benefit ratio (1:24.78) was obtained with dimethoate and the lowest in flubendiamide.