81.
The composition of Bordeaux paste is

82.
The smut of pearlmillet (caused by Tolyposporium penicillariae) is a

83.
When disease spreads to the whole of plants, it is termed as

84.
Enzymes occur in the cell in the form of

85.
One of the most resistant biological material is

86.
Respiration can occur in the absence of oxygen in

87.
Photorespiration in C3 plants starts from

88.
Propoxur is

89.
Citrus greening caused by the

90.
Who made the 1st report of nematode associated with plant disease in 1943?