Boise Valley Fly Fishers
 
 
Since 1971

 

FLY TYING BLOG


  • 29 Mar 2025 9:50 AM | Troy Pearse (Administrator)


    The Blackhurst Tactical Caddis came about from my love of the insect and spending lots of time on the Boise River fishing Caddis hatches, and being very successful at it. I entered a fly tying competition a few years ago and ended up winning 1st place. The competition was through Orvis, which had just come out with their new Tactical hooks, and they put it on that hook with my name and the rest is history. I tie this fly in s16, which seems to be the best size for this pattern, though I do use s12 and s10, on the flies I tie, I will add antenna. Some may know that when Caddis hatch, it is a quick process. Once they break the surface, they pop out of their pupal shuck and fly off, unlike a Mayfly that takes its time, slowly crawling out of the shuck, waiting for their wings unfurl and dry before they fly off. So Trout have learned that they better be quick if they are going to have a Caddis meal…so Caddis emerges, when fished correctly, can lead to a lot of action

    Recipe

    Hook: Any emerger hook. I use a Caddis emerger hook

    Thread: 8\0 tan…or color of choice

    Body: tan or brown Hares Ear hair. Here you can use any color to match the hatch

    Rib: v -rib. I use size – midge Then brush the hair to make it buggier and more into a pupal-cycle

    Underwing: 3 individual CDC. 2 brown or Caddis dun and 1 tan CDC or ….2 tan CDC and 1 brown or Caddis dun CDC

    Overwing: deer hair in lightish brown or your favorite. Tie in a little longer than the underwing.

    Antenna: horse hair or moose hair. I usually leave mine long, like twice the length of at least the body

    Thorax: Fox Squirrel dubbing hair - buggier the better This hair, I use in a split thread technique

    Directions

    1. I recommend using barbless hooks in at least a curved hook type. I use a Caddis emerger hook. Put the hook in the vice.

    2. Starting at the back of the thorax start your thread. After getting thread secured wrap in your v-rib material. Continue down the hook slightly below the bottom of the arc of the hook. Stop there and do a slightly loose dubbing ball.

    3. Keep the body sparse, thin. Using your thumb and pointing fingers, brush the body hair forward to the of back of thorax area.

    4. Counter wrap the v-rib up and stopping at the back of the thorax area. Tie off the v-rib and cut there.

    5. Tie in the 3 CDC configuration in the recipes section. Tie in here. Try to keep the tie-in area clean. Tie the CDC feathers down, snip off here.

    6. Tie in the deer hair. Make sure you keep this area clean. Make sure you have like deer hair tied in without the hair fanning out too much. It should be just over the CDC feathers. Snip the butt ends of the deer hair off. The area just tied in, the CDC and deer hair, should not be into the thorax area very much.

    7. You need the larger thorax area. Use the split-thread or loop technique here. Spin up the Squirrel hair…buggier the better, and why you want to leave the antenna hair long in the beginning, so it didn’t get lost in the Squirrel dubbing. End just behind the antenna, then jump up under the antenna and whip finish.

    8. I like a buggy thorax, so I brush it out.

    Get out and have a good, safe outing.


  • 29 Mar 2025 9:25 AM | Troy Pearse (Administrator)

    by Troy Pearse

    Recently club member Bob Harder asked me for a list of my favorite emerger fly patterns. After putting a list together, I thought I would share a few of them with you along with some of my thoughts on emergers. Over the years I have found emergers to be my most productive patterns. Trout will often take an emerger pattern more readily than an adult. I think this is because emergers are often more vulnerable—stuck in the surface meniscus—and trout love an easy meal!

    In addition to having some good emerger fly patterns it is important to know where to fish them. The typical mayfly emergence pattern is 1) Nymphs swim to the surface; 2) They pull out of their nymphal shuck and break through the meniscus; 3) They dry their wings; and 4) They fly fly away. This means that mayfly emergers tend to fish best at point of emergence. For example, BWOs often hatch where a riffle slows down and drops into a run or pool and emergers fish best near that transition and not as well lower in the run or pool—as the adult bugs have had time to fly away. Emergence-zones are different for every bug. For example, Green Drakes like to emerge along current seams, so you will find your best results fishing there.

    Two of my most productive mayfly emerger patterns are Scott Sanchez’s Parachute Midge Emerger and Dry Fly Innovation’s Colored Emerger. They are very similar except Sanchez’s PME adds a few wraps of hackle through the thorax, which makes it work better in choppy water and it can suspend a small dropper nymph (which is something that Nate would never do! ;-) . Just vary the body and wing color and you can match any type of mayfly or midge.

    Caddis come out of their case on the bottom and the pupa swims up to the surface and then quickly flies away. If you see fish coming out of the water after hatching caddis, then a surface emerger pattern like Blackhurst’s tactical CDC caddis is a good choice. Caddis are on the surface for such a short time that I have my best success fishing an emerging pupa pattern under the surface. It is worth reading Gary Lafontaine’s classic book on Caddisflies. His Sparkle Pupa still is one of the best caddis emerger patterns, although I also have great luck with Mike Mercer's Z Wing Caddis.

    Stoneflys crawl to the edge and hatch out of the water, so there isn’t an emerger phase. However, trout will follow those nymphs to the shore and will hold tight to the banks waiting for them to drop into the water. Freshly hatched Salmonflys are very bright orange, and fishing a bright orange adult pattern (like a Rogue Stone) tight to the bank early in the morning can work exceptionally well. Just be careful not to spook the trout!

    I would like to take this opportunity to thank Bob Harder for all of the wonderful club presentations he has coordinated. After many years, Bob is stepping down from this role. Club meetings are an important part of our Fly Fishing Education mission. If you are interested in helping fill this role, please reach out to President Brian Martin. It is a great way to help the club while getting to meet many interesting people in the fly fishing industry.

    Favorite Emerger Fly Patterns:

    Sanchez’s PME:

    Jack Dennis's book "Tying Flies With Jack Dennis and Friends" shows complete "how to" instructions for this fly plus so many more deadly patterns. 

    RECIPE:

    • Tiemco 100 or 101 dry fly hook #16-22
    • Thread: Color to match natural
    • Body: Antron dubbing to match insect. 
    • Thorax: A few turns of Peacock Dubbing
    • Ribbing: Pearl micro Krystal Flash or Sulky
    • Wing: Poly parapost matched to the natural insect wing
    • Hackle: Grizzly or dun hackle feather or color to match natural

    DFI Colored Emerger:

    RECIPE FOR BWO Colored Emerger

    • Daiichi 1270 20-22 
    • Thread: Olive dun 8/0 
    • Body:  Olive dun thread or Turkey Biot
    • Ribbing: None
    • Thorax: Olive-brown Superfine dubbing
    • Wing: Grey CDC
    You can purchase the BWO Colored Emerger and the Midge Colored Emerger from Dry Fly Innovations.

    Mike Mercer's Z Wing Caddis:

    Charlie Craven has an excellent set of fly tying tutorials. Here is one on tying the Z Wing Caddis.

    Blackhurst’s Tactical CDC Caddis

    See pattern in this month’s newsletter, on the fly tying blog, or you can purchase it from Orvis  .


  • 10 Jan 2025 10:19 AM | Troy Pearse (Administrator)


    by Scott Blackhurst

    The red zebra midge is a term to describe many different small winged insects. There are thousands of individual species of midges. The midge represents the pupal stage of a midge which is a small aquatic insect that is a primary food source for Trout and shoreline birds. They are prevalent in Tail Waters and are a Rockstar to trout anglers. Midges are classified as Diptera, Greek for “two wings,” which is a family of flies known as True Flies. They have one pair of wings with balancing organs called halteres located just behind the base of the wing. There are biting and non-biting midges with most midges being aquatic being highly beneficial and desirable organisms in the ecosystem. They consume and recycle organic debris. They have 4 complete life stages: egg, larvae, pupa and adult. The complete life cycle can occur in as short a time as 2-7 weeks during fall and winter, depending on water temperatures. This combined abundance and frequency makes them a primary food. General colors are green, red and black.

    1 – Use whatever hook you have as long as it’s not over…never mind. I usually don’t tie my patterns under s20 as I just can’t see to tie them on! Use sizes 18-24. The sizes above are a s18 scud hook

    2 – The color of the midge you’re making. The small the fly, the smaller the thread should be to make the fly easier. The 2 above, I used 70 denier.

    3 – Head – use an appropriate bead size for the hook you are using. Usually silver for red, gold for black, and usually, I use black for green midges.

    4 – Start your thread just behind the bead and build a slight dam to keep the head at the hook eye. At around ¼ of the way down, tie in the rib you are going to use. Use touching turns of thread going down to the bend of the hook and remember to unwind your thread so the body is nice and flat. I usually go into the bend of the hook.

    5 – Now you’ll want to make a nice, tapered body, keeping the thread unwound to make it nice and flat. Some people make the thorax area, just behind the bead, the same thickness as the bead. I don’t as it seems to me, makes the body a little fatter than it should be.

    6 – Once you have the body you want, wind the ribbing material up to just behind the bead. Tie the rib in completely…this is one of the reasons I don’t initially build the area behind the bead up, as you usually add in enough thread tying in the rib, that it can get a little, out of control.

    7 – Depending if you are going to use UV resin or not, make sure to finish off the fly just behind the bead. The picture I have of the 2 flies. The right side I used a flat, flash tinsel, that I marked with a black marker (on the side that sits against the body) and I used a UV resin. The left side I used a BR size black wire for the rib with no UV resin. I usually use resin to help protect the threaded body so the fly lasts longer.


  • 08 Jan 2025 5:14 PM | Troy Pearse (Administrator)

    When I first started fly fishing I used a lot of attractor flies, and one of my favorites was the Royal Wulff. It was easy to see and fish loved it! Over the years as I got into entomology and matching the hatch I moved away from attractor style flies and focused on flies that more closely resembled the bugs in the water and the Royal Wulff gave way to Comparaduns. As a result of matching natural insects, very few of the flies in my box incorporated red, except for the butt of a Dave’s Hopper and a cinnamon ant.

    One day while talking with the shopkeeper and fly tier at the old Riverkeeper Fly Shop in preparation for a winter midging trip to the Big Wood River he talked me into buying some emergers that had a mylar red rib—he said they were magic! I took them to the river and they sat in my box while I fished all of my regular flies. I still remember the pool I was fishing because nothing was working that day. Fish were rising and ignoring my fly. Finally, I tied on the new “magic” midge emerger and on the first cast a trout grabbed it and for the next half hour that fly caught fish after fish until it was torn to shreds and the hatch was over. I’ve kept that fly as a memory of that day, and a reminder of the magic of a little red can do.


    Over the last 10 years, more of my flies have incorporated red on them, and by far the most effective time to fish red seems to be mid-winter into early spring. And while red on a dry fly can sometimes be magic (I love Dry Fly Innovations Blood Midge fly pattern), I have had the most success with red on my midge nymphs. Three of my most successful patterns have been a simple red zebra midge, a red/black “Deadpool” midge, and a flash-back Spanish Bullet. All are easy to tie and worth adding to your winter fly box--I find smaller sizes from #18, #20 and even #22 flies do the best. Try tying some with a glass bead and use them as a dropper underneath a dry fly early in the hatch.

    I’ve often asked myself why red? Some midges have hemoglobin in their blood, and you will often hear them referred to as “bloodworms”. The book Midge Magic by Don Holbrook and Ed Koch is an excellent book, and a must read if you are a midge fishermen. Don spent 25 years studying midge specimens, often from trout stomachs. Their book has some great midge photographs and fly patterns, many which are red.

    Another possible explanation for red flies working on rainbow trout in late winter and early spring is fish biology. Red is a key spawning color, used to attract a mate. Studies have shown that stickleback minnows become attenuated to the color red during spawning (which is also a spawning color for them). The rods and cones in the eyes of trout and other salmonids can shift to see different wavelengths, so it is reasonable to assume that a red fly might get their attention as their bodies get ready to spawn (or it all could just be another of Troy’s crazy theories ;-). But whatever the case, red nymphs can catch some BIG FISH! Here is a beautiful rainbow trout from the Boise River that fell for a Deadpool Midge in early Spring—one of the largest rainbow’s I’ve caught on the Boise. And take note: a red zebra midge took first, second and third place in the virtual whitefish derby last year, so make sure to tie some up for this year’s derby!

    The moral of this story is: When it comes to sealing the deal, size matters. But when it comes to attracting the fish’s attention, attractor colors can be a game changer. Try some red this winter and see for yourself!



  • 02 Jan 2024 7:34 PM | Troy Pearse (Administrator)

    Matching the hatch is one of the hallmarks of fly fishing: Identify what food is available to the trout and fish a suitable imitation. Usually, we think about aquatic insects like caddis and mayflies, and if the adult insect isn’t available to fish on the surface we switch to fishing the nymphal form underneath the water. But there are some food sources that never hatch into bugs, yet fish love to eat them whenever they can. One of their favorite is caviar—that’s right, we are talking about fish eggs!

    Some fly fishermen turn up their nose at fishing an egg pattern, likening it to fishing bait (cue Hank Patterson’s rant to Eric Moncada). But really, what’s the difference between imitating a caddis larva rolling along the bottom of the river and an egg? Both are natural food items, and if you know when eggs are in the water you can catch a lot of trout on an egg fly. Of course, while out fishing in the Fall you want to avoid fishing to brown trout that are actively spawning, and it is important to know how to recognize a trout redd and avoid wading through it which could crush eggs. Here is a short ReddUCation Video that BVFF put together that shows what a brown trout redd looks like.

    Just like insect hatches, there are certain times that eggs fish best because they are more available. In November and December rivers are low, brown trout and whitefish are both spawning and believe me, fish notice all of those little balls of protein floating down the river. Brown trout eggs run about 4mm in diameter with whitefish eggs being half that size and their egg colors range from pale to bright orange. Brown trout lay their eggs into redds (nests) and cover them with gravel but mountain whitefish are broadcast spawners, meaning they don’t make a nest but instead discharge their eggs into a gravely riffle. An average trout lays between 2,000 to 3,000 eggs with a large trout laying 4,000 to 5,000 eggs and a typical mountain whitefish releases over 5,000 eggs with large females laying over 10,000 eggs!

    On the Boise River, egg patterns are one of my most productive patterns in late Fall and Winter. Over the years I have fished many different egg patterns but my favorite is the Eggstacy. It is simple to tie and simply out-fishes the others. Eggstacy yarn is available in a variety of colors with my favorite colors being Sockeye and Fl Peach as shown in the photo. Here are instructions for tying the pattern and a video from TightLineVideos on Tying The Eggstacy. Note that when tying a whitefish egg imitation I size down the hook, skip the bead and trim the Eggstacy yarn to make a smaller egg pattern to better match the natural.


    Eggstasy Egg Fly Pattern

    Hook: #16 TMC 2457, heavy scud hook

    • Bead: Gold, orange or pink 2.5mm bead

    • Thread: Fluorescent orange, 70-denier or 8/0

    • Body: 3-4 turns of Eggstasy yarn



  • 26 May 2023 10:06 AM | Troy Pearse (Administrator)

    The Western Green Drake is one of the largest mayflys and a favorite summer hatch on the Big Wood and Henry’s Fork. On the Big Wood River they typically hatch in early July, but on low water years the hatch window moves up to late June and on high water years (like this one) the hatch gets pushed out until mid-July.

    Green Drakes belong to the “clinger family” and like faster water than most mayflies—check out the robust legs on the Green Drake nymph shown in the photo! Green Drakes are unusual for mayflys in that instead of emerging from their nymphal shuck at the surface they crawl out of their shucks on the bottom of the river then swim “naked” to the surface. Although the nymphs live in fast water, they migrate to slower edges to emerge, so make sure to drift your dry fly down the slower secondary seams next to the fast water runs.

    It takes Green Drakes time to dry their big wings and fly away and I find emergers fish well. My favorite fly pattern for the Green Drake hatch is Scott Sanchez’s Parachute Midge Emerger. I also have good luck with a dropper of an unweighted peacock soft hackle pattern, which imitates the “naked” Green Drake adult swimming to the surface. Before the hatch, a Prince Nymph is a good bet--I think the white goose biot wings are a good imitation of the nymphal case splitting open.


    PME Green Drake

    • Hook: #10 TMC 100

    • Thread: Olive 8/0 Uni-thread

    • Body: Peacock Ice Dub

    • Rib: Krystal Flash

    • Wing: Dark Grey Parapost

    • Hackle: Brown (or Grizzly) Hackle


    For more information on the Green Drake Hatch on Henry's Fork, see this Fly Fisherman article and listen to this Podcast with Mike Lawson.





  • 30 Dec 2021 5:48 PM | Jim Kazakoff (Administrator)

    Congratulations to BVFF member Bob Harder who recently passed the Fly Fishers International Fly Tying Group Silver Level Award certification. This certification requires a juried examination of six different fly patterns tied by the applicant.

    The FFI Fly Tying Skills Awards Program provides FFI members with the opportunity to develop or reinforce their fly tying skills and test their progress against a consistent, standard at three levels: Bronze, Silver and Gold.

    At Silver level, tyers must be able to tie a wider range of flies, using more complicated materials and techniques to produce more intricate patterns and closer representations of specific prey species being imitated. The degree of consistency and the standard of the techniques applied must be a clear step higher than at Bronze level.

    And yes, that is a lot of thread!!

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