|
Home > Archive > Pest Control > August 2005 > Magnolia tree and wasps
You are viewing an archived Text-only version of the thread.
To view this thread in it's original format and/or if you want to reply to
this thread please [click here]
| Author |
Magnolia tree and wasps
|
|
| Joey Goldstein 2005-07-24, 9:12 pm |
| My magnolia tree seems to be emitting a type of sap. It gets all over my
car, especially on my windshield. A large number of wasps have started
gathering around these sappy excretions and it is getting dangerous out there.
I've read that the sap is actually an excretion of a bug, the magnolia
scale, that infests magnolia trees. I have noticed a little bit of white
bumpy areas on some branches but nothing alarming. I've seen none of the
actual scales.
I recently had a pest control guy come by and he sprayed my tree with
something or other.
He had never heard of magnolia scales but he has guaranteed me that he
will solve my problem, either with this spray or with something else. He
told me to wait a week and then call him back.
Well it's been about 4 days now and while I see less sap on my car the
wasps are still all over it.
Do magnolia trees secret this sap when there are no scales present too?
What else could be going on?
Do wasps just like magnolia trees?
I can live with the sap but the wasps have to go.
What else can be done about them?
TIA
--
Joey Goldstein
http://www.joeygoldstein.com
joegold AT sympatico DOT ca
| |
|
| In article <42E1B480.2B0C93D0@nowhere.net>, nospam@nowhere.net says...
 I've read that the sap is actually an excretion of a bug, the magnolia
scale, that infests magnolia trees. I have noticed a little bit of white
bumpy areas on some branches but nothing alarming. I've seen none of the
actual scales.
Magnolia scale is one of the larger scale species and should be easy to
see.....
I recently had a pest control guy come by and he sprayed my tree with
something or other.
He had never heard of magnolia scales but he has guaranteed me that he
will solve my problem, either with this spray or with something else. He
told me to wait a week and then call him back.
Probably won't stop them...they will be more vulnerable next month when
the new generation shows up, basically helping out the tree next year.
I would think a systemic product like Orthene would be a good choice to
get some results this time of year.
Well it's been about 4 days now and while I see less sap on my car the
wasps are still all over it.
Do magnolia trees secret this sap when there are no scales present too?
I don't think so....
What else could be going on?
Do wasps just like magnolia trees?
I can live with the sap but the wasps have to go.
What else can be done about them?
You may need to wait up to two weeks before you know for sure of the
results. You might just need a good rain to wash the sap away and have
the wasps go elsewhere for a food source. Depending on the size of the
tree you might could wash it with a hose. Some of the pyrethroid
insecticides may have some repellency along with residual kill for
wasps, but this may not be a practical approach.
--
Lar
to email....get rid of the BUGS
| |
| Joey Goldstein 2005-07-24, 9:12 pm |
|
Lar wrote:
>
> In article <42E1B480.2B0C93D0@nowhere.net>, nospam@nowhere.net says...
>
> I've read that the sap is actually an excretion of a bug, the magnolia
> scale, that infests magnolia trees. I have noticed a little bit of white
> bumpy areas on some branches but nothing alarming. I've seen none of the
> actual scales.
>
> Magnolia scale is one of the larger scale species and should be easy to
> see.....
Where on the tree should I look for them?
If the spray has killed them would I see them on the ground?
> I recently had a pest control guy come by and he sprayed my tree with
> something or other.
> He had never heard of magnolia scales but he has guaranteed me that he
> will solve my problem, either with this spray or with something else. He
> told me to wait a week and then call him back.
>
> Probably won't stop them...they will be more vulnerable next month when
> the new generation shows up, basically helping out the tree next year.
> I would think a systemic product like Orthene would be a good choice to
> get some results this time of year.
He said he sprayed the tree with "permethrin (demand cs)".
Will that do anything?
He said that he would probably try this next, "permethrin (dragnet ec)".
Will that do anything any better?
> Well it's been about 4 days now and while I see less sap on my car the
> wasps are still all over it.
>
> Do magnolia trees secret this sap when there are no scales present too?
> I don't think so....
Hmmm. I'll take a closer look and see if I can spot the scales.
So, you're saying that the wasps are an almost sure indicator of the
presence of the scales then, right? No scales, no wasps, right?
> What else could be going on?
> Do wasps just like magnolia trees?
>
> I can live with the sap but the wasps have to go.
> What else can be done about them?
> You may need to wait up to two weeks before you know for sure of the
> results. You might just need a good rain to wash the sap away and have
> the wasps go elsewhere for a food source. Depending on the size of the
> tree you might could wash it with a hose.
After I rinse off my car (just with fresh water from a hose, i.e. no
soap) the wasps come back in about 10 minutes, and like I said, there
doesn't seem to be any more sap dripping onto my car over the last 2
days or so.
Maybe some of the old sap doesn't rinse off the car?
Maybe there's still some sap in the leaves that drips onto the car less noticeably?
Would rinsing the tree with a garden hose diminish the effectiveness (if
any) of the permethrin?
> Some of the pyrethroid
> insecticides may have some repellency along with residual kill for
> wasps, but this may not be a practical approach.
Killing the wasps would be good.
Thanks for the advice and any for more you can give me.
Magnolia scales seem to be a mystery to this particular pest control guy.
--
Joey Goldstein
http://www.joeygoldstein.com
joegold AT sympatico DOT ca
| |
| Joey Goldstein 2005-07-26, 5:21 pm |
| Update
The spraying on Monday, July 18, with permethrin (demand cs) had no
effect on the wasps, although there does appear to be much less (if any
still) sap on my car. But the wasps still gather around the car.
My pest-control guy sprayed the tree again today, this time with a power
sprayer (it's a big tree) and permethrin (dragnet ec).
I still have my doubts as to whether or not this stuff will do anything
for me.
What to do next?
--
Joey Goldstein
http://www.joeygoldstein.com
joegold AT sympatico DOT ca
| |
|
| In article <42E68F6A.FBA8A9BE@nowhere.net>, nospam@nowhere.net says...
Update
The spraying on Monday, July 18, with permethrin (demand cs) had no
effect on the wasps, although there does appear to be much less (if any
still) sap on my car. But the wasps still gather around the car.
My pest-control guy sprayed the tree again today, this time with a power
sprayer (it's a big tree) and permethrin (dragnet ec).
I still have my doubts as to whether or not this stuff will do anything
for me.
What to do next?
The permethrin should kill any wasp that comes into contact with the
spray while wet and with the bit of repellency with permethrin the wasps
may stay at bay for a few days. If the scale/honeydew problem is solved
the wasps may not be back in force, but you will always see a few flying
about the tree hunting.
--
Lar
to email....get rid of the BUGS
| |
| Joey Goldstein 2005-07-28, 5:21 pm |
|
So far so good.
Greatly diminished number of wasps in the area and around my car.
Could just be the cooler weather inhibiting the flow of sap, but maybe I
got lucky too.
--
Joey Goldstein
http://www.joeygoldstein.com
joegold AT sympatico DOT ca
| |
| PCOpug 2005-08-01, 12:21 am |
| A large number of wasps have started
gathering around these sappy excretions and it is getting dangerous out
there.
IMHO Demand CS (lamda-cyholathrin) is an excellent choice for above said
problem .
Certain trees, bushes and plants give off a higher carbo at one time of year
or another . Wasps, bees , flies , beetles swarm all over .
I dunno about the danger part. The insects are not defending nests ,
unaggressive . Excluding stepped on bare hands or feet .
Usually lasts for about a week, then it is over .
Insecticides have a marginal effect.
I try to discourage the customer.
If the customer Demands application , however , I give the customer what
they want .
| |
| Joey Goldstein 2005-08-01, 10:21 pm |
|
PCOpug wrote:
>
> A large number of wasps have started
> gathering around these sappy excretions and it is getting dangerous out
> there.
>
> IMHO Demand CS (lamda-cyholathrin) is an excellent choice for above said
> problem .
Well if you've been folowing this thread you'll know that my guy used
permethrin, twice, so far. Applications were about a week apart, 2nd
time with a power sprayer.
Update
The wasps were gone for 2 days but this also coincided with much cooler weather.
Now the hot weather is back and so are the wasps, in full force today.
> Certain trees, bushes and plants give off a higher carbo at one time of year
> or another . Wasps, bees , flies , beetles swarm all over .
> I dunno about the danger part. The insects are not defending nests ,
> unaggressive .
Yes, they are remarkably passive. But still.
> Excluding stepped on bare hands or feet .
> Usually lasts for about a week, then it is over .
This has been going on for about 2 months now.
I've only been in this house for 1 1/2 summers. I remember there being
some sap on my car last year but I do not remember all the wasps. It
seems to be getting worse. My neighbor also has a magnolia tree which
stands right next to mine, leaves overlapping. Even if I get rid of my
infestation, my tree will probably just get infect again from hers eventually.
> Insecticides have a marginal effect.
I may have to have the tree taken down.
Everybody who sees it loves it, but it's a pain in the XXX, in more ways
than just this.
> I try to discourage the customer.
>
> If the customer Demands application , however , I give the customer what
> they want .
--
Joey Goldstein
http://www.joeygoldstein.com
joegold AT sympatico DOT ca
| |
| PCOpug 2005-08-02, 1:21 am |
| Chill , man
Magnolia trees are beautiful and attract all kinds of funky moss crap and
insects...but it doesn,t hurt them .
Avoid parking there for a week or so .
Permethrin and Demand are different pesticides altogether . Demand is a very
advanced form of $ynthetic pyrethrum .
If economic situations are favorable , then chop the thing down. That would
be a permanant solution .
Ps buy new trees , maples , good shade , trim easily , little maintenance
except for leaves and twirlybird things.
| |
| Joey Goldstein 2005-08-02, 2:21 am |
|
PCOpug wrote:
>
> Chill , man
Right on, Daddio.
> Magnolia trees are beautiful and attract all kinds of funky moss crap and
> insects...but it doesn,t hurt them .
How 'bout me? And my car?
> Avoid parking there for a week or so .
It's my driveway.
> Permethrin and Demand are different pesticides altogether . Demand is a very
> advanced form of $ynthetic pyrethrum .
And you're telling me this because?
The 1st time my pest control guy sprayed he used "permethrin (demand cs)".
The 2nd time he used "the "old" permethrin (dragnet ec)".
Or that's what he told me.
Are you saying that there is some other pesticide (pyrethrum?) he should
have used?
That he doen't know the names of his pesticides?
What?
> If economic situations are favorable , then chop the thing down.
What do you mean by economic situations?
And what do economic situations have to do with anything?
> That would
> be a permanant solution .
Well, yeah. That's why I'm leaning that way.
Do you have another suggestion, besides just living with wasps and sap
all over my car?
> Ps buy new trees , maples , good shade , trim easily , little maintenance
I probably would. I like trees. I like this tree. But it's a pain in the
XXX. It's ruining my car and the wasps are a drag.
> except for leaves and twirlybird things.
I can live with leaves.
--
Joey Goldstein
http://www.joeygoldstein.com
joegold AT sympatico DOT ca
| |
| PCOpug 2005-08-02, 8:21 pm |
| If economic situations are favorable
..
Tree stuff can be expensive and sometimes neighbors don't approve .
| |
|
|
|
|
|