POPULATION DYNAMICS AND BIO-INTENSIVE MANAGEMENT OF INSECT PEST COMPLEX IN HIGH-DENSITY MANGO ORCHARDS
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Date
2023
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DIVISION OF ENTOMOLOGY ICAR-INDIAN AGRICULTURAL RESEARCH INSTITUTE NEWDELHI– 110012
Abstract
Mango, Mangifera indica L. (Anacardiaceae) is the national fruit of India and this fruit has developed
its own importance all over the world due to its taste and aroma. The present study was conducted in the
high-density mango orchard of National Germplasm Repository of Sub-tropical Fruit Crops at ICAR
RCER, Farming System Research Centre for Hill and Plateau Region (FSRCHPR), Plandu, Ranchi from
January to June, 2023 to study the insect pest population dynamics and formulate effective bio-intensive
pest management strategies. A total of 24 species from 18 families of insect pest majority of Hemiptera,
Lepidoptera, and Coleoptera orders were observed infesting mango flowers and fruits. The insect pests
including, giantscale, Labioproctus poleii (Green), fog scale, Aulacaspistubercularis(Newstead),scale,
Pulvinaria polygonata (Cockerell), mango hoppers, Amritodus atkinsoni (Lethierry), Idioscopus
niveosparsus (Lethierry), Idioscopus nagpurensis (Pruthi), Fruit flies, Bactrocera zonata (Saunders), B.
correcta (Bezzi), B. dorsalis (Hendel) were observed major from flowering to fruit harvest period.
Application of Imidacloprid 17.8 % SL @ 0.005 %, Clothianidin 50% WDG @ 0.03% and Dinotefuran
20% SG @ 0.006 % were found most effective against sucking insect pest complex at flowering stage
whereas Spinetoram 11.7 % SC @ 0.012% was effective against fruiting stage pest complex and
comparatively safer towards natural enemies. The treatment Clothianidin 50% WDG recorded the
highest benefit: Cost ratio (6.02) and was found to be the most economical among flowering stage
treatments whereas Spinetoram 11.7 % SC was found as most economic (B: C ratio 3.91) at fruiting
stage.