Tag Archives: Scotch pine

The Sawfly Larva is Back :(

May 15, 2009

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I thought we got rid of them all last year. :( I went out to my garden yesterday, to see how the weeds flowers and shrubs are growing, and spotted these nasty little devils on my Scotch pines again.

**sigh**

They are small right now; can you see them?

Sawfly Larva

In case, you don’t remember or you weren’t a devoted fan last year and missed all the fun– we had an infestation of the sawfly caterpillar last year. It was quite a surprise one morning to walk to my garden and see more than half of my pine tree completely defoliated by these horrid, disgusting little creatures.

Evil Bugs
Click the photo and click “all sizes” for a huge, close-up photo of these ugly bugs. Have a barf bag nearby.

We had to hand-pick them off the trees. It took HOURS and was more laborious than sorting through travel insurance quotes. :-p

Bug Soap Soup

This is what a healthy pine branch looks like:

Good Pine

This is what a pine branch after the European sawfly looks like:

Exfoliated Pine

Sawfly Damage

This is some of the damage these critters do:

Exfoliated

They kill the pine. Destroying the needles basically suffocates and starves the tree. I have put a lot of time, money, and love into my plants and my gardens. I just cannot BELIEVE that a couple hundred bugs can destroy everything…. it’s always an uphill battle, isn’t it?! GRRR!

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Caterpillar Killers

May 31, 2008

13 Comments

That would be us.

And I thought it was going to be a relaxing Saturday.

I went out to get the mail this morning, and took a stroll to the other side of the yard (about 120 feet across). I had been working in the other garden beds so far and hadn’t attempted to weed/feed/re-mulch this one yet. I guess I should have looked a little sooner. I was shocked to come up to my beautiful pine tree and see that almost all of it had been exfoliated. What the?! What exfoliates a pine tree?

Poor Tree

Exfoliated

This does.

Devil Bugs

My stomach literally churned. I drew back in sheer horror. The devilish little creatures sensed my movement and wriggled in unison as a response. Oh. my. God. Help! The tree was loaded with them. Thousands. Upon thousands.

I ran into the house to holler for the kids. They are very well-trained now. When we’ve had severe flooding in our yard and especially in our basement (up to three feet, on a regular basis), I would holler like that. In less than ten seconds, they would stampede down the stairs– ready for action. I told them to get their shoes on, girls tie back their long hair (shudder), and grab a bucket. Meet me by the hose.

Without asking any questions, they were there. What great kids. I broke the news to them. Yeah. They were as repulsed as I was. Since I had no pesticides on hand, and since these larvae were really too mature for pesticides to stop them, we would have to pick them off by hand.

Evil Bugs

The YUK Factor.

I filled the buckets with dish soap and water.

Filling Buckets

And away we went. My youngest, a bug person, actually enjoyed it after a while. I remained repulsed.

Picking Bugs

Bug Soap Soup

We found a sparrow’s nest in the pine, too. It had one little egg (had hatched) and was filled with about a dozen caterpillers.

Nest

I was very angry at the birds. I felt they had shirked their duty. Here was a literal feast and they had passed it up. My daughter had been putting out bird seed in another part of the yard; perhaps the birds were filling up too much on the seed and not on the insects. Well, no more seed for them! These birds have jobs to do!

We plucked for about three hours. We found more larvae in the other pine, too. Then we raked up all the mulch and leaves and burned it all. Muahahahhaahhahaha.

I did some research, because I had never seen such larvae that ate evergreen needles before. We have a huge pest problem with tent caterpillers in Upstate New York (I’ve already killed four web nests in my apple tree this year), but I’ve never seen anything like this. Apparently, this larvae is the European sawfly. It came, obviously, from Europe, and favors Scotch and Mugo pines trees. It exfoliates the old growth on the tree. The larvae develop into the sawfly, that then lays its eggs at the base of the tree for next year’s attack. The best defense is to hand-pick the little devils. Pesticides are ineffective when the larvae is too mature (mid- to late-May).

I think we got them all, but we are going to have to keep close watch the next few weeks. I smeared a thick layer of petroleum jelly at the base of all the pine trunks, and slathered the trunk of my neighboring Maple, as added protection. This way, if those little devils start crawling up the trunk, they’ll get stuck in the jelly. Muahahahahhahaha again.

But there’s always SOMETHING around here to beat back! Sheesh!

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