The economic injury level for white fly is________________?
A. 1-2 nymphs/leaf
B. 2-3 nymphs/leaf
C. 3-4 nymphs/leaf
D. 1 nymphs/leaf
A. 1-2 nymphs/leaf
B. 2-3 nymphs/leaf
C. 3-4 nymphs/leaf
D. 1 nymphs/leaf
A. Trachea
B. Spines
C. Secretion
D. Nervous system
A. Fungi which cause disease
B. Any bacteria which causes disease
C. Any virus which causes disease
D. Any organism which causes disease
A. Fungi
B. Nematodes
C. Virus
D. Bacteria
A. Producing toxic substances in plants
B. Destroying green pigment of plant
C. feeding on flowers and fruits
D. Absorption of nutrients from plant tissues
A. Leaf rust
B. Strip rust
C. Loose rust
D. All the above
A. Thallus
B. Hyphae
C. Mycellium
D. Septale