Page 19 - Landscape SA 98

FEATURE

the growing room could have helped the
pests to proliferate but this is not a cause
in itself. Fortunately, the infestation has
been confined to one growing block and
only 27 plants were infected.
Thrips are tiny, fringe-winged insects
that suck plant sap and can be a serious
threat when present in large numbers.
With asymmetrical mouthparts, different
species feed on plants and leaves by
puncturing and sucking up the contents.
The insects lay eggs in plant tissue and
manifest as yellowish, speckled dots on
the tops and undersides of leaves.
Pest-specific sachets attached to the
Treatment infected plants

Cilo Cybin used a product manufactured
by Koppert Biological Systems, a the oil has a bitter taste and a garlic/ leaves continue to be inspected because
company with extensive knowledge of sulphur-type smell. It consists of a mixture the plants have lower immunity and can
micro-organisms, bio stimulants and of components that reduce insect feeding be re-infected. At the time of infection, the
pheromones designed to improve plant and act as an insect repellent. Azadirachtin plants were approximately two weeks into
resilience. The product is supplied by Bio is the most active component of Neem oil flower and six weeks old from propagation.
Leaf Technologies.
and interferes with the insects’ hormone Other pathogens that can affect cannabis
and nervous system, making it more plants include spider mite, white fly
In conjunction with this, Neem oil was also difficult for them to grow and lay eggs. and powdery mildew. These can occur
used, having been diluted and sprayed individually or all at once, and in the latter
onto the cannabis leaves. It is a naturally Once treated, the cannabis plants improve case, plants have to be destroyed and
occurring pesticide found in the seeds of within 7-10 days but Walton says the incinerated.
the Neem tree. Yellow to brown in colour, LSA

Landscape SA • Issue 98 2021 17