Yesterday was one
month since we had started our trials of differing eradication methods for the
Algerian sea lavender that is plaguing the estuary at the mouth of the San
Diego River.
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| An Algerian sea lavender infested plot one month ago before treatment |
The solarization has
yet to show any effects upon the Limonium ramosissimum underneath the black plastic cover.
This is unsurprising, given that most solarization projects leave the
solarization material in place for at least two months.
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| Limonium treated with solarization one month after being covered with plastic |
One month later there is an apparent difference between the area in which the sea lavender was scraped away and the area where we pulled the weed out by hand. The regrowth of the sea lavender is slightly greater in the area that was scraped. Neither the hand pulled plot nor the scraped plot, however, have a great deal of regrowth, with less than five percent of the plot area taken up by the sea lavender. The regrowth of the native flora is about twice as great in the area that was hand pulled. So far it looks like hand pulling is more successful in getting rid of the sea lavender and promoting growth by natives. Stay tuned for more updates on the Algerian sea lavender.
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| A plot that was scraped of limonium one month after treatment |
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| A plot in which the limonium was hand pulled one month after treatment |
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