THAKUR, R.C.BEORA, NAGENDRA SINGH2019-03-292019-03-291986http://krishikosh.egranth.ac.in/handle/1/5810099936ennullSUCCESION OF INSECT PESTS ON DIFFERENT VARIETIES OF BLACK GRAM URD VIGNA PHASEOLUS MUNGO L HEPPER AND THEIR CHEMICAL CONTROLThesis