Cultural practices are important for managing plant diseases by destroying infection centers, breaking infection chains, starving pathogens, and creating unfavorable conditions. Some key cultural practices include: 1) Crop rotation, which involves planting non-host crops to allow soil-borne pathogens to die off when lacking a host. Rotating crops every 5+ years is effective for pathogens like Pseudomonas solanacearum and root knot nematodes. 2) Sanitation practices like destroying crop residues harboring pathogens, rouging out infected hosts and weeds, and eliminating overwintering hosts and weeds to reduce inoculum levels. 3) Eliminating alternate hosts that can harbor pathogens, like removing barberry which hosts

1. PLANT DISEASES MANAGEMENT THROUGH
CULTURAL PRACTICES
DR. RAJBIR SINGH
Assistant Professor
Department of Plant Pathology
Gochar Mahavidyalaya, Rampur Maniharan, Saharanpur (UP), India
Affiliated to Ch. Charan Singh University, Meerut (UP), India
Email: rajbir25805@yahoo.com, rajbirsingh2810@gmail.com
Cell No. 91-9456613374

2. Disease Management Through
Cultural Practices
Cultural practices– Practices pertaining to the cultivation of crops
Principles
To destruct infection centre
To break infection chain
Starving of pathogen
Create unfavorable conditions for pathogen

3. • (A). Crop Rotation - (i). For soil borne pathogens
(ii). Pathogen not get host & die
• Soil inhabitant - > 5 yrs
Exp. Pseudomonas solanacearum
Root knot nematode
• Soil Invader - < 5 yrs
Exp. Rhizoctonia spp.

4. (B). Sanitation – destruction or reduction of inoculum
a). Destruction of crop residues
Exp. White rust of crucifers
b). Eradication of host & pathogen or rouging
Exp. Loose smut of wheat
c). Elamination of over summering / over wintering
hosts / weeds

5. (C). Eradication of alternate host-
Exp. Barberry
(D). Modification of cultural practices
(a). Mixed cropping
Exp. Jowar + Arhar
HCN control F. oxysporium sp. udum

6. (b). Avoid over crowding or plant spacing
Exp. Damping off of Vegetables
(c). Alteration of date of sowing
Exp. White rust of crucifers – early sowing
(d). Proper irrigation
Exp. Bacterial Leaf Blight of Rice
(e). Hot weather deep ploughing
Exp. Stem rot of rice (S. oryzae)

7. (f). Method of sowing
Exp. Deep sowing ↓ flag smut of wheat
(g). High ridging
Exp. 10-15 cm ↓ L. B. of Potato
(d). Selection of healthy seed
Exp. Loose smut of wheat
(i). Use of organic amendments - (Antagonist)
Exp. Damping off

8. (j). Adjustment of soil reaction
Exp. Club root of crucifers
(c). Adjustment of harvesting time
Exp. L. B. of Potato – cut upper portion

9. Thank You

10. Thank You