CSIR informs water requirements of SA’s multi-billion rand deciduous fruit industry
24 April, 2019
With exports raking in
billions of rand annually, South Africa's apple growers form an important part
of the country's economic development. However, their heavy dependence on water
in a country facing growing water challenges, demands an enhanced understanding
of the water requirements...
Tree sleuths are using DNA tests and machine vision to crack timber crimes
19 April, 2019
When 420 tonnes of deep crimson logs arrived at a Sri Lankan port in
April 2014, customs officers cast a suspicious eye over them. The wood
was en route from Zanzibar in Tanzania to Hong Kong, where it would
probably be crafted into expensive furniture for the Chinese market.
Genetic diversity of the pine pathogen Lecanosticta acicola in Slovenia and Croatia
17 April, 2019
Brown spot needle blight (BSNB), a disease of pine trees caused by the fungus Lecanosticta acicola, has been known in Slovenia since 2008 and in Croatia since 1975. Recent outbreaks in Slovenia prompted this study to compare L. acicola populations in these two neighbouring European countries.
Global population genomics of the forest pathogen Dothistroma septosporum reveal chromosome duplications in high dothistromin‐producing strains
17 April, 2019
Dothistroma needle blight is one of the most devastating pine tree
diseases worldwide. New and emerging epidemics have been frequent over
the last 25 years, particularly in the Northern Hemisphere, where they
are in part associated with changing weather patterns.
Pinning down the period for increased risk of fire in the African savannas
16 April, 2019
Devastating wildfires are
known to cause irreparable damage the world over. Studies conducted by CSIR
earth observation experts revealed that determining the end of the growing
season is important to be able to assess the risk of fire spread in the African
Effect of Sirex noctilio (Hymenoptera: Siricidae) attack density on Pinus sylvestris (Pinaceae) survival
5 April, 2019
Population density is often a critical
factor in colonisation of trees by bark and wood-boring insects and may
determine whether an exotic species is likely to establish and spread.
In a manipulative field study, we investigated whether density of the
Environmentally friendly methods for controlling pine pitch canker
5 April, 2019
Fusarium circinatum is a
highly virulent invasive pathogen that causes the disease commonly known
as pine pitch canker (PPC). On mature trees, the most common symptoms
of PPC include resin bleeding, resinous cankers, wilting of needles and
Alien plants threaten to use up half of the inflows into two important dams in SA
3 April, 2019
to 50% of the annual inflows into the Western Cape's Berg River Dam catchment
and Limpopo's De Hoop Dam catchment could be used up by alien plants over a
period of 45 years, if they are left uncleared.
is the warning issued by water experts Dr David Le Maitre of the CSIR.