Asia, Central America, Europe, India, Mediterranean region, Middle East,
The first noticeable sign of broomrape is the appearance of
whitish-yellow shoots at the base of the infected plant. When the soil
is removed the broomrape roots are found attached to the roots of the
tomato plant. Later these yellow snapdragon-like parasitic plants will
produce flowers, and as the plant matures it turns brown and the seed
capsules release tiny, black seeds.
Conditions for Disease Development:
Broomrape seeds may lie dormant in the soil for more than 20 years. The
root exudates from host plants stimulate germination and the young
seedling attaches its roots to the roots of its host from which it
extracts nutrients to grow and reproduce. After flowering, very small
seeds are produced that can be distributed on cultivation equipment and
in irrigation water, both between and within fields. Conditions
favorable for tomato plant growth also favor broomrape growth and
Fumigation and crop rotation, in conjunction with good sanitation
practices which include removing and destroying any affected plants
along with the broomrape, can reduce losses from this parasite.
growing on tomato roots.