Thumbnail Image

University of Agricultural Sciences, Dharwad

The University of Agricultural Sciences, Dharwad was established on October 1, 1986. The University has 5 Colleges, 27 Research Stations, 6 Agriculture Extension Education Centers, 6 Krishi Vigyan Kendras and ATIC. The University has its jurisdiction over 7 districts namely Bagalkot, Belgaum, Bijapur, Dharwad, Gadag, Haveri, and Uttar Kannada in northern Karnataka. Greater diversity exists in soil types, climate, topography cropping and farming situations. The jurisdiction includes dry-farming to heavy rainfall and irrigated area. Important crops of the region include sorghum, cotton, rice, pulses, chilli, sugarcane, groundnut, sunflower, wheat, safflower etc. The region is also known for many horticultural crops. Considerable progress has been registered in the field of education, research and extension from this University.

Browse

20141
Reset filters
Thesis Type: M.Sc × Subject: Agricultural Entomology × Start date: 2010 × End date: 2017 × Author: ANIL AMRESH SAJJAN ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    SEASONAL INCIDENCE AND MANAGEMENT OF BRINJAL PESTS WITH SPECIAL REFERENCE TO SHOOT AND FRUIT BORER, Leucinodes orbonalis (Guen.)
    (University of Agricultural Sciences, Dharwad, 2014-10) ANIL AMRESH SAJJAN; Dr. C. M. RAFEE
    Field experiments were conducted at MARS, Dharwad during kharif 2013-14, to monitor brinjal pests and their natural enemies, mass trapping of moths with water traps and management of shoot and fruit borer with insecticides. The survey in Belagavi and Dharwad districts at vegetative and reproductive stages indicated highest shoot infestation (18.9 %) in vegetative and reproductive stage (10.5 %) in Belagavi. Likewise highest fruit infestation (18.8 %) also more in Belagavi compared to Dharwad district (16.4 %). The sucking pests and natural enemies were more in Belagavi district compared to Dharwad at both the stages. Incidence of BSFB on shoots was highest (34.30 %) during September third week and maximum damage on fruits was during October second week (35.10 %). The incidence of leafhopper was highest at October third week (23.30/ 3 leaves), white fly during first week of November (12.10/ 3 leaves), aphids during first week of November (10.60 / 3 leaves) and mite during third week of November (14.50 / 4 cm2). These sucking pests showed highly significant positive correlation with maximum temperature. The highest activity of coccinellids was observed in first week of November (1.80 /plant), spider during last week of October (1.30 /plant) and chrysopid during October last week (1.30 /plant). The peak moth catch was recorded at September last week (10.7 moths /trap), shoots infestation highest damage was observed during September 4th week (31.6 %) and highest larval population was observed during October last week (4.20 larvae /plant). Among the insecticides evaluated for the management of BSFB cyantranilprole 10% OD @ 0.3 ml/l, rynaxypyr 20 SC @ 0.15 ml, spinosad 45 SC @ 0.1 ml/l registered significantly lowest shoot and fruit damage with higher yield of 198.20, 197.15 and 194.65 q/ha, respectively. Among the insecticides flubendiamide recorded higher B:C ratio (1:5.42).