References on Mango

Kumari D. A., Anitha V., Girwani A., Reddy C. N.

Author Affiliation: Grape Research Station, Dr. Y.S.R. Horticultural University, Rajendranagar, Hyderabad, A.P., India.
International Journal of Plant Protection 7 : 99-103

Abstract : Mango hoppers, Ideoscopus clypealis (Leth.) and Ideoscopus niveosparsus (nititulus) (Leth.) are serious pests on mango in the flowering and fruiting season. The efficacy of different spray modules were tested against mango hopper on mango cv. Banganpalli under field conditions during 2010-2012 at Fruit Research Station, Sangareddy Andhra Pradesh, India. The treatments consisted of Module I: First spray of Beauveria bassiana @ (1×107 spores/ml) at panicle emergence stage followed by second spray (after 15 days of first spray) of Verticillium lecanii (@ 1×107 spores/ml). Third need based spray of Neem Azal (10000 ppm @ 8 ml/lit. of water). Module II: First spray of Neem Azal (10000 ppm @ 3 ml/lit. of water) at panicle emergence stage followed by second spray (after 15 days of first spray) with Nimbicidene (1500 ppm @ 3 ml/l of water) Third spray of Neem Azal (10000 ppm @ 3 ml/lit. of water after 15 days of second spray) and fourth need based spray with Nimbicidene (1500 ppm @ 3 ml/l of water). Module III: First spray of Thiamethoxam (0.008%) at panicle emergence stage followed by second spray (21 days after first spray) of profenophos (0.05%) and third need based spray of Carbaryl (0.15%) Module IV: First spray of Spinosad (0.004%) at panicle emergence stage followed by second spray (21 days after first spray) with Thiamethoxam (0.008%) and third need based spray of Neem Azal (10000 ppm @ 3 ml/l of water). Module V: First spray of Acephate (0.04%) at panicle emergence stage followed by second spray (21 days after first spray) with Spinosad (0.004%) and third need based spray of Carbaryl (0.15%) and control with five replications in a completely randomized block design. The main objective of the study was to change the treatment regime from calendar sprays to need based spray so as to minimize the production cost and pesticide residues. Peak incidence of hoppers were noticed in Jan-Feb coinciding with blossoming and declined thereafter through to April first week. Pre and post spray counts were recorded in all the treatments and analysis of data revealed that Module III was found to be superior in controlling the hoppers followed by module V and Module IV. The hopper population recorded during 2010-11 (18.3 hoppers per panicle) compared to the hopper population in 2011-12 (15.7 hoppers per panicle). The yield data of fruit for individual years along with mean value of two years showed that the fruit yields was significantly higher in Module III (125.36 kg/tree) compared to untreated trees.