TY - JOUR AU - Nithin, A. Sobhana, M.S. Smitha, K.N. PY - 2019/05/15 Y2 - 2024/03/28 TI - Entomopathogenic fungi – Potential candidates for biocontrol of Helopeltis antonii Signoret in cashew JF - Journal of Plantation Crops JA - JPC VL - 47 IS - 1 SE - Research Articles DO - 10.25081/jpc.2019.v47.i1.5531 UR - https://updatepublishing.com/journal/index.php/JPC/article/view/5531 SP - 24-30 AB - <p>Evaluation of fungal entomopathogens, <em>viz., Beauveria bassiana, Metarhizium anisopliae</em> and <em>Lecanicillium lecanii</em> against tea mosquito bug (<em>Helopeltis antonii</em> Signoret), an insect pest of cashew revealed that these fungi are pathogenic to <em>H. antonii.</em> Mortality of <em>H. antonii</em> commenced after three days of inoculation, increased gradually with time and became evident at fifth day with 82.5 per cent, 85 per cent and 65 per cent respectively with <em>B. bassiana, M. anisopliae</em> and <em>L. lecanii</em> @10<sup>9</sup> spores mL<sup>-1</sup>. <em>B. bassiana</em> and <em>M.</em> <em>anisopliae </em>shown complete mortality at sixth day, whereas mortality rate with<em> L. lecanii </em>was 85 per cent. A field experiment was conducted in randomized block design for two consecutive years with these three entomopathogenic fungi @10<sup>8</sup> spores mL<sup>-1</sup>. Two rounds of spray were given by targeting flowering and nut set stage in the first year, instead of the routine three spray schedule on flushing, flowering and nut set; while routine three sprays were given in the second year. In the first year of field evaluation, least damage was observed in Kerala Agricultural University package of practices (KAU POP) with quinalphos, targeting both flowering and nut set stage. However, both <em>B. bassiana and L. lecanii</em> also recorded less tea mosquito bug damage and were comparable with KAU POP. In the second year, <em>B. bassiana</em> was on par with KAU POP and <em>L. lecanii</em> was superior to control. Highest nut yield was recorded in trees treated with <em>B. bassiana</em> followed by KAU POP.</p> ER -