Q.1 Acervuli formed by the fungus__________.
Fusarium Alternaria Colletotricum
Q.2 Mottle leaf of citrus is due to deficiency of________.
Iron Zinc Boron
Q.3 Which pathogen of grapes caused heavy losses to wine industry in France due to its epidemics in 1875?
Phytophthora infestans Plasmopara viticola Helminthosporium oryzae
Q.4 Downy mildew disease can effectively be managed by spraying of_________.
Metalaxyl MZ Thiophanate methyl Mancozeb
Q.5 Potato leaf roll virus is transmitted through___________.
Myzus persicae Aphis gossypi Pentalonia nigronervosa
Q.6 Stem parasite of mango is_______.
Striga Orobanche Loranthus
Q.7 Which type of soil is most favored for root knot nematode ?
Clay soil Sandy Calcareous soil
Q.8 Complete stem parasite of citrus is___________.
Cuscuta Striga Orobanche
Q.9 Root knot disease of okra can effectively be managed by_________.
Carbendazim Carbofuran Thirum
Q.10 Which insect is transmitting little leaf of brinjal?
Aphid Thrips Jassid
Q.11 Mango malformation is caused by_____.
Alternaria solani Meloidogyne incognita Fusarium moniliformae
Q.12 Late blight of potato is associated with______.
Bengal famine France famine Irish famine
Q.13 Citrus gummosis is caused by_______.
Fusarium spp. Phytophthora spp. Colletotricum spp.
Q.14 Alternaria porri is causing disease in onion______.
Onion smudge Damping off Purple blotch
Q.15 The causal organism of powdery mildew of grapes is__________.
Plasmopara viticola Leveillula taurica Uncinula necator
Q.16 Chilli leaf curl is transmitted through_________.
Aphids Jassids White fly
Q.17 Stem gall of coriander is caused by___________.
Cercospora punicae Colletotricum circinans Protomyces macrosporus
Q.18 Pacilomyces lilacinus is a bio-agent against__________.
Bacteria Algae Nematodes
Q.19 200ppm = _____gm / L. water.
0.2 gm 2 gm 0.02 gm
Q.20 Potato leaf roll virus is transmitted through___________.
Aphis gossypi Pentalonia nigronervosa Myzus persicae
Q.21 Bunchy top of banana virus is transmitted through_______.
Myzus persicae Pentalonia nigronervosa Bemisia tabaci
Q.22 The mycelium of Leveillula taurica is_____.
Ectophytic Endophytic Paraphytic
Q.23 Colletotricum circinans causes which disease in onion_____________.
Purple blotch Rhizome rot Smudge
Q.24 Red rust of tea is caused by_________.
Nematodes Bacteria Algae
Q.25 Erwinia amylovora causes which disease in apple orchards_________.
Fire blight Scab Powdery mildew
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