Opisina arenosella; CONTROL-BY; Test for suitability; FOOD-PLANTS; Coconut palms; Hemipteran predator efficiency, control suitability implications; HYMENOPTERAN-PARASITES; Bracon brevicornis & Goniozus nephantidis; Host/parasite predation by Hemiptera, control implications; POPULATION-DYNAMICS ; Synchronization with hemipteran predator population; INSECT-PREDATORS; Cardiastethus exiguus (Hemiptera); Predatory efficiency, control suitability trials; DISTRIBUTION-WITHIN-HABITAT; Hemipteran predator cooccurrence; Biocontrol suitability implications; CULTIVATED-LAND-HABITAT; Palm plantation, hemipteran predator efficiency & control potential; KERALA-; Kappad, Kayamkulam, Purakkad & Vypeen; Hemipteran predator efficiency & biocontrol potential, palm plantations Bracon brevicornis; Goniozus nephantidis; LEPIDOPTERAN-HOSTS; Opisina arenosella; Host/parasite predation by Hemiptera; INSECT-PREDATORS; Cardiastethus exiguus (Hemiptera); Lepidopteran host/parasite predation; KERALA-; Kappad, Kayamkulam, Purakkad & Vypeen; Lepidopteran host/parasite predation by Hemiptera, control implications Cardiastethus exiguus; CONTROL-OF; Suitability trials, predatory efficiency analysis; INSECT-PREY; Opisina arenosella (Lepidoptera); Predatory efficiency, control suitability trials; POPULATION-DYNAMICS; Synchronization with lepidopteran prey population; DISTRIBUTION-WITHIN-HABITAT; Cooccurrence with lepidopteran prey population; Biocontrol suitability implications; CULTIVATED-LAND-HABITAT; Potential as lepidopteran pest biocontrol agent; KERALA-; Kappad, Kayamkulam, Purakkad & Vypeen; Predatory efficiency on lepidopteran pest, control value, palm plantations