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26-11-2019, 12:35 AM posted to rec.gardens.edible
T[_4_]
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First recorded activity by GardenBanter: Jan 2015
Posts: 1,112
cabbage
On 2019-11-25 13:14,
wrote:
T wrote:
On 2019-11-24 04:26,
wrote:
On Sunday, November 24, 2019 at 6:39:57 AM UTC-5, T wrote:
Is cabbage hard to grow?
Zone 6B
No, the only problem I've had is with cabbage moth worms. They will wipe out a plant in days. Fortunately, Bt will solve the problem with regular applications.
what is Bt?
Bt is a biological agent (not a chemical poison) that is widely
used in "organic" gardens.
Bt {Bacilllus thuringiensis (k)} is an organism that when eaten by
them kills ANY lepidotera—even the pretty ones—in its soft body instar
(caterpillars and "worms") by stopping its digestive system from
working. Widely available in a liquid concentrate and in a powder.
Bt (i)) is effective exclusively on most mosquito species and is
generally available as bouyant "dunks", which may be floated on standing
water to eliminate larvae, and is less widely available in a granular
form.
Bt is highly selective, short lived, and affects only a very small
universe of crawlies. It is harmless to other insects, including ants,
wasps and bees, to reptiles and to mammals.
Fascinating!
They got one for squash bugs?
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