Vol. 9 (2) : March-April 2018 issue
Green Farming Vol. 9 (2) : 370-374 ; March-April, 2018
Influence of cultivation methods on incidence of rice pests
D. SUDHA RANIa1*, CH. NAGA SATYASRIb2, M.N. VENKATESHb3 and K. ANAND KUMARb4
aAgricultural Res. Station, bAgricultural Polytechnic, Garikapadu, Jaggaiahpet - 521 175, Krishna (Andhra Pradesh)
Designation : 1Scientist *(sudhalakshman248@gmail.com), 2,3,4Teaching Associate
Subject : Entomology
Paper No. : P-7186
Total Pages : 5
Received : 24 February 2018
Revised accepted : 06 March 2018
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Citation :
D. SUDHA RANI, CH. NAGA SATYASRI, M.N. VENKATESH and K. ANAND KUMAR. 2018. Influence of cultivation methods on incidence of rice pests. Green Farming Vol. 9 (2) : 370-374 ; March-April, 2018
ABSTRACT
Field experiments were conducted at Agricultural Research Station, Garikapadu, Krishna district during rabi, 2016-17 and kharif, 2017 to assess the influence of various cultivation methods viz., Manual transplanting (line planting); Manual transplanting (random planting); Direct sown; Drum seeder and Machine transplanting (8 row) on incidence of rice pests. The results indicated that among all the methods, machine transplanted plots (T5) comparatively recorded significantly mean lower incidence of per cent dead hearts (2.1 & 6.8), white ears (10.6 & 5.3), silver shoots (2.1 & 3.8), leaf folder damaged leaves (6.7 & 10.5), number of BPH population/hill (19.3 & 98.0) and number of WBPH population/hill (11.5 & 70.0) during rabi, 2016-17 and kharif, 2017 respectively. It is inferred from the analyzed data that, T5 was found on par with T2 (Line planting) in harbouring mean incidence of maximum pests and the direct sown plots recorded highest pest population among all the methods both during rabi, 2016-17 and kharif, 2017.
Key words :
Cultivation methods, Dead hearts, Pest incidence, Rice.