Agriculture Reference
In-Depth Information
Root knot eelworm (
Meloidogyne
spp.)
is a
worldwide important pest in tropical countries. It
used to be a serious pest in British greenhouses, but
the use of 'grow bags' has reduced its survival and
spread. The pest causes large root
galls
up to 4 cm in
size, on the roots of plants such as chrysanthemum,
Begonia
, cucumber and tomato, with resulting wilting
and poor plant growth.
Partial-soil sterilization
(see
p. 190) helps reduce the problem, especially if all root
debris has been removed. Tomato rootstocks, such
as '
KVNF
', grafted onto other cultivars resist the
nematode.
Further reading
Alford, D.V. (2002)
Pests of Ornamental Trees, Shrubs
and Flowers
. Wolfe Publishing.
British Crop Protection Council (2014)
UK Pesticide
Guide
. BCPC.
Brown, L.V. (2008)
Applied Principles of Horticulture
.
3rd edn. Butterworth Heinemann.
Brown, S. (2005)
Sports Turf and Amenity Grassland
Management
. Crowood Publications.
Buczacki, S. and Harris, K. (2005)
Pests, Diseases and
Disorders of Garden Plants.
Collins.
French, J. (2007)
Natural Control of Garden Pests
. Aird
Books.
Greenwood, P. and Halstead, H. (2009)
Pests and
Diseases
. Dorling Kindersley.
Helyer, N. (2003)
A Colour Handbook of Biological
Control in Plant Protection
. Manson Publishing.
Hessayon, D.G. (2009)
Pest and Weed Expert
.
Transworld Publishers.
RHS (2011) Rabbit resistant plants. Online: apps.rhs.
org.uk/advicesearch/profile.aspx?pid=209. RHS
RHS (2014) Pesticides for home gardeners. Online:
www.rhs.org.uk/media/pdfs/advice/pesticides. RHS
Advisory Service.
Migratory plant nematodes
Unlike the
nematodes described above, the migratory
species feed only from the
outside
of the root. The
dagger nematodes (e.g.
Xiphinema diversicaudatum
)
and needle nematodes (e.g.
Longidorus elongatus
),
which reach lengths of 0.4 and 1.0 cm, respectively,
attack the young roots of crops such as rose,
raspberry and strawberry, and cause stunted growth.
In addition, these species transmit important viruses,
arabis mosaic
on strawberry and
tomato black ring
on ornamental cherries. The nematodes also may
survive on the roots of a wide variety of weeds. The
use of clean plant stock and good weed control helps
keep these problems at bay.
18
Please visit the companion website for further information:
www.routledge.com/cw/adams
