Browsing by Author "Prathibha, P.S."
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Item Arecanut(2018) Prathibha, P.S.; Shivaji Hausrao ThubeItem Assessing status of pests and diseases with cluster approach - A case of coconut in Kasaragod district in northern Kerala(2017) Chandran, K.P.; Thamban, C.; Prathibha, V.H.; Prathibha, P.S.Item Development of rapid, efficient and cost effective screening technique for testing arecanut against Phytophthora meadii incitant of fruit rot disease(2024) Prathibha, P.S.; Nagaraja, N.R.; Rajesh, M.K.; Daliyamol; K. P. Thejasri; Rajkumar; Vinayaka Hegde; Uchoi AnokTo accelerate identification of disease resistant arecanut germplasm or hybrids against Phytoph- thora , it is very much imperative to develop bioassays which could differentiate resistant and susceptible cultivars efficiently. Here, a cost effective and rapid technique, called the “Detached Leaf Assay ”, was developed to identify resistant germplasm at the seedling stage itself. Zoospore production in highly virulent Phytophthora meadii (P19) was standardized by incubating under a 12 hours light and dark regime. Zoospore suspension was adjusted to 105 spores ml-1 in Petri plates. Subsequently, surface sterilized arecanut leaves were floated in zoospore suspension and incubated at temperature of 24 ± 1 °C. Disease symptoms, including water-soaked lesions, were recorded three days after inoculation. Infection lesion increased from 1 to 7.3 cm2 . The pathogen was re-isolated and confirmed with the original culture. The assay was successfully validated to screen arecanut accessions, wild types and hybrids against P. meadii . This technique is the first to be developed, and it is simple, cost-effective, and faster. It also provides consistent infection and could be effectively utilized to screen arecanut germplasm or hybrids against P. meadii in the seedling stage itself.Item Diagnosis of invasive whitefly species co-occurring on coconut(2020-10) Joseph Rajkumar, A.; Chandrika Mohan; Merin Babu; Prathibha, P.S.; Vinayaka HegdeItem Holistic Package to Mitigate Exotic Whiteflies on Coconut(2020-09) Joseph Rajkumar, A.; Anes, K.M.; Merin Babu; Prathibha, P.S.; Chandrika MohanItem Influence of abiotic factors on behaviour and adult emergence pattern of coconut white grub, Leucopholis coneophora Burmeister (Coleoptera: Scarabaeidae)(2018) Prathibha, P.S.; Kumar, A.R.V.; Kesavan Subaharan; Vibina VenugopalItem Integrated Management of Coconut Pests(2019-12) Prathibha, P.S.; Chandrika Mohan; Joseph Rajkumar, A.Item Integrated management of whitegrubs in coconut garden(2020-02) Prathibha, P.S.Item Intercropping of fruit crops in Coconut garden Vignettes from 'Chowtara thota' Meevapadavu(2021-01) Thamban, C.; Shameena Beegum; Prathibha, P.S.; DaliyamolItem New Distribution Record of Palm Whitefly, Aleurotrachelus atratus Hempel in Kerala, India(2022-07) Jilu V. Sajan; Prathibha, P.S.; Diwakar, Y.; Joseph Rajkumar, A.Item Nut pests of coconut(2024-08-01) Jilu V. Sajan; Prathibha, P.S.; Sujithra, M; Anes, K.M.; Merin Babu; Shareefa, M.; Josephrajkumar, A.Item Pest Dynamics and Suppression Strategies(2018) Joseph Rajkumar, A.; Chandrika Mohan; Prathibha, P.S.; Rajkumar; Nalinakumari, T.; Nair, C.P.R.Item Pests of cocoa and their management(2016) Shivaji Hausrao Thube; Saneera, E.K.; Prathibha, P.S.Item RED PALM WEEVIL - A POTENTIALPEST ON ARECANUT(2020) Prathibha, P.S.; Thamban, C.Item RED PALM WEEVIL- A POTENTIAL PEST ON ARECANUT(2020) Prathibha, P.S.; Thamban, C.Item Toxicity and dissipation of soil insecticides applied in the management of arecanut white grub, Leucopholis burmeisteri Brenk. (Coleoptera: Scarabaeidae)(2017) Prathibha, P.S.; Subaharan, K.; A. R. V. Kumar