21 research outputs found
Management of red pumpkin beetle, Aulacophora foveicollis (Lucas) with traditional method of dusting with dung ash in cucurbits
Full text link208-214Efficacy of dung ash was evaluated against red pumpkin beetle in cucumber, musk melon and bottle gourd crops during 2018 and 2019 at Entomological Research Farm, Punjab Agricultural University, Ludhiana. After germination, dung ash was dusted on plants 1, 2, 3 and 4 times at weekly interval. Significant decline in adult population in all the treatments was observed as compared to control. Lowest mean adult population was observed in plots which were dusted with ash three to four times at weekly interval and higher percentage reduction compared to control in these treatments was observed. In all the three crops, highest mortality of plants was observed in control during both the years. With three dung ash applications given at weekly interval, an additional yield of 84.33, 98.85 and 254.40 q/ha was obtained in cucumber, musk melon and bottle gourd, respectively. The net return over control with dung ash treatments was also found better in all the three crops. Based on this study, it is concluded that red pumpkin beetle can be managed effectively with dusting of dung ash on the plants 3-4 times at weekly interval. This management technique has the prospective to be utilised as an alternate to harmful chemical insecticides in IPM programmes
Eco-friendly management of sucking insect pests in okra with homemade and commercial neem formulations under Punjab conditions
No full text1027-1032Sucking insect pests like leaf hopper, Amrasca bigutulla bigutulla (Ishida) and whitefly, Bemisia tabaci (Gennadius)
pose a great threat to the high production of okra fruit. Being vegetable crop, it is eaten as raw and cooked, but due to attack
of pest numbers of sprays were done at weekly interval to manage this pest. To reduce the pesticides load on crop and
human body the botanical based biorational were in use. So there is need for eco-friendly management of these sucking
pests so as to reduce the pesticide load in the okra crop. Neem and its formulations as botanical insecticides can play an
important role against sucking insect pests and as an alternative to chemical insecticides. Experiments were conducted at
Punjab Agricultural University, Ludhiana during 2018 and 2019. Neem formulations Ecotin 5% @ 200 mL and PAU
homemade neem extract @ 3000 mL per hectare were found effective for the management of leaf hopper and whitefly in
okra. The present finding will help in reducing the pesticide load on vegetable crops and enhance natural enemy
biodiversity
Pyriproxyfen- An IGR for the management of whitefly <i>Bemisia Tabaci</i> (Gennadius) on chilli
No full textWomen in forestry in India
Full text linkThe increasingly visible impact of the fuelwood and fodder crisis on the household has called attention to the need to involve women in forestry planning. In this paper, women have been classified into four groups based on farming system and habitat: tribal women; hill women; plains women; and poor urban women. This paper attempts to make a few basic points. First, it is essential to document women's relationship to forests both in the context of the household and the outside economy. For projects to succeed, the linkages must be drawn between women's roles in the different farming systems, the food supply system, domestic tasks and their income-earning activities. A second major thrust of the paper is to demonstrate that an overriding concern with the impact of the fuelwood and fodder crisis on women as actors in the domestic subsistence economy has blinded planners to their equally important role in the non-domestic forestry economy. The paper also points out the importance of forest resources for poor households and as a source of income for resource-poor women. Finally, through an examination of women's roles in different farming systems, this paper shows women's substantial involvement with forests and makes the case for strengthening their involvement in the entire forestry sector.Forestry,Agricultural Knowledge&Information Systems,Health Monitoring&Evaluation,Environmental Economics&Policies,Crops&Crop Management Systems
Penicillum oxalicum spg1: A novel entomopathogenic fungus isolated from mummified Bemisia tabaci (Gennadius) of cotton
Full text linkWhitefly has assumed the status of a serious pest of cotton in north India in recent past due to its severe attack on cotton crop. The productivity of cotton crop has fallen substantially from 574 kg ha-1 of lint in the year 2014 -15 to 197 kg ha-1 in the year 2015-16 in Punjab. During extensive epidemiological surveillance of whitefly on cotton crop in the month of September 2016, mummified whiteflies with fungus were noticed on both abaxial and adaxial surfaces of leaves of the infested cotton plant at village, Mandi Khurd, Mansa District of Punjab, India and at Punjab Agricultural University, Regional Research Station, Bathinda, India. The fungus was isolated and purified from the mummified white fly and characterized at molecular level by sequencing 633 bp D2 region of Large Subunit (LSU) rRNA gene and identified as Penicillium oxalicum spg1. The gene sequence has been submitted to NCBI, USA with accession no. KY214238. The microscopic studies (stereo- and scanning electron) of the cotton leaves with mummified whitefly further strengthen the entomopathogenic potential of P. oxalicum spg1. There are few reports of entomopathogenic potential of P. oxalicum spg1 against other insects and pests. To our knowledge, this is the first report of isolation and identification of P. oxalicum spg1 from mummified white fly. It’s potential as a biocontrol agent against white fly can be exploited in a promising way with nominal interference with biological equilibrium
Effect of Cold Spraying Parameters and Their Interaction an Hydroxyapatite Deposition
Full text linkCold spraying has been effectively investigated for spraying of various metals, alloys and composites. Coating of bio-ceramics like Hydroxyapatite (HAP) using thermal spraying has been investigated extensively, but there is a dearth of research related with HAP deposition using cold spraying. The relative percentage contribution of five important cold spraying parameters, their optimum combination and expected HAP particle velocity at optimum combination have been extensively discussed by the author, but no researcher reported the interactional effect of cold spraying parameters on HAP particle velocity. This paper examined the severity index of interactional effect of five important factors of cold spraying viz. gas type, gas inlet pressure, gas inlet temperature, particle size and particle temperature on HAP particle velocity. Most influential factor pairs and their influence on HAP particle velocity have been discussed with respect to various cold spraying gases viz. air, hydrogen, nitrogen and helium. In addition, CFD gas pressure and temperature distributions along the nozzle length and their mathematical validation have also been undertaken in the present paper
