Copyright 2015 James Marsh
Hatches and Trout Flies for the Wolf River in Wisconsin
The hatches on the Wolf River can be very large. The insects can blanket the water at times.
The pH of the river is very good and aquatic insects of a large variety grow well in the river.
The upper section which consist of slow moving water with a soft bottom has a completely
different variety of insects than the lower fast water sections of the river, so keep that in mind
when we list the insects. A particular insect probably want exist throughout the entire stream.
Blue-winged Olives hatch in March and April. They are bi-brooded and hatch again during the
month of September. Hendricksons hatch during the month of April and on into the first week
or two of May, depending on the water and weather.
Beginning about the first of May you should find some Sulphurs that hatch through the month
and on it the first couple of week in June. Around the last week of May and the first couple of
weeks of June you will find Eastern Pale Evening Duns. These are very much like the Sulphurs,
just a little larger.
American March Browns hatch from about the last of May and on through most of June. Light
Cahills, another clinger mayfly, hatches through most of the month of June.
Brown Drakes hatch for about the first three weeks of June. This can be a very good hatch.
The large Michigan Caddis or Hexagenia Limbata hatches about the middle of June and on
into the first week or so of July.
There is a large Trico hatch that last for most of July. Slate Drakes can hatch from the last
week or so of June all the way to the middle of August. Little Yellow Quills hatch in late July and
most of the month of August. White Flies hatch for most of the month of August. The Trico,
Brown Drakes, Michigan Caddis and White Flies are found mostly in the upper slower water
with a soft bottom.
There is a Little Black Caddis hatch that occurs in late April and early May. There are several
species of Spotted Sedges and Cinnamon Sedges that hatch in late June all the way until the
end of August. They are the most plentiful and most important.
There are some Green Sedges. Imitations of their larva, or Green Rock Worms, will catch fish
most of the season. We feel like they are some more caddisfly species in the Wolf that exist in
large numbers but we haven't yet identified them.
This stream is full of crayfish. Streamers that imitate them can be very effective on the large
brown trout. There is also a population of sculpin and some minnow and other small baitfish.
Streamers will work for the brown trout anytime the water is high or slightly dingy as well as
early and late in the day.
Ants, beetles and grasshoppers are around the stream during the months of July and August.
Imitations of them can be effective at times.
Midges hatch during most of the year, especially in the slower water in the upper sections of
the river. Imitations of their larvae, pupae and adults will catch trout all year but are most
effective when few other insects are hatching early and late in the season.
There is also a Cream Fly which is similar to a Yellow or Golden Drake. They are the
Potomanthus myops and verticis species that hatch in large numbers. We do not have specific
imitations of them. They are unique to the Wolf River.
Our Perfect Flies are effective in this river. If you haven't already done so, we hope you will
give them a chance to preform for you. They are not only very realistic, they are very effective
at catching trout.
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Wolf River, Wisconsin
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