[MAIPC] biocontrol for beefsteak plant

Sat Oct 17 04:05:30 PDT 2020

We can use Summer Azure (Celastrina neglecta) as a biocontrol for Perilla
frutescens. Let us go do it!

Marc Imlay

Natural Places Committee of the Maryland Sierra Club

https://www.marylandbiodiversity.com/viewSpecies.php?species=536

From: VA-MD-DE-Bugs at yahoogroups.com <VA-MD-DE-Bugs at yahoogroups.com> 
Sent: Saturday, October 17, 2020 12:25 AM
To: VA-MD-DE-Bugs at yahoogroups.com
Cc: 'Sara Tangren' <wild_terp at icloud.com>; 'Jil and Warren'
<elytra at earthlink.net>
Subject: RE: [VA-MD-DE-Bugs] FW: biocontrol for beefsteak plant

All:

Perilla is fairly widespread and common throughout the Potomac River
woodlands here in Loudoun County.  I have never found it to be a problem as
far as becoming alarmingly invasive, and any volunteers that get too close
to my garden get yanked.  It is one of the few plants on the forest floor
that the deer don't like to eat.  I read that it does have some culinary
use, but have not investigated further.

I do know that the Summer Azure (Celastrina neglecta) larvae eat the
flowers, and I'm rearing some on Perilla right now.  Not enough to eradicate
the plant, but apparently there is some wildlife value as relates to
butterflies.  I have also found a small moth larva on one of the sprigs I've
taken in to feed my Azure larvae.  I will rear it through to see what it is.

Harry Pavulaan

Leesburg, VA.

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From: 'Marc Imlay' ialm at erols.com [VA-MD-DE-Bugs]
<mailto:VA-MD-DE-Bugs at yahoogroups.com> 
Sent: Tuesday, October 13, 2020 9:11 AM
To: VA-MD-DE-Bugs at yahoogroups.com <mailto:VA-MD-DE-Bugs at yahoogroups.com> 
Cc: 'Sara Tangren' <mailto:wild_terp at icloud.com> ; 'Jil and Warren'
<mailto:elytra at earthlink.net> 
Subject: [VA-MD-DE-Bugs] FW: biocontrol for beefsteak plant

So how can we attract native aphids, cutworms, and spider mites to an area
infested with beefsteak plant that may help control beefsteak plant? For
example, is there a native milk weed to plant? Marc

From: Marc Imlay <ialm at erols.com <mailto:ialm at erols.com> > 
Sent: Monday, October 12, 2020 7:38 AM
To: 'maipc at lists.maipc.org' <maipc at lists.maipc.org
<mailto:maipc at lists.maipc.org> >; 'INVASIVES at LISTSERV.UMD.EDU'
<INVASIVES at LISTSERV.UMD.EDU <mailto:INVASIVES at LISTSERV.UMD.EDU> >; 'APWG'
<apwg-bounces at lists.plantconservation.org
<mailto:apwg-bounces at lists.plantconservation.org> >
Cc: 'Kathleen Michels' <michelskm2016 at gmail.com
<mailto:michelskm2016 at gmail.com> >; 'hans haucke' <hanshaucke at verizon.net
<mailto:hanshaucke at verizon.net> >; 'Lily Fountain'
<lily.fountain at mdsierra.org <mailto:lily.fountain at mdsierra.org> >
Subject: biocontrol for beefsteak plant

Based on the review of pests of beefsteak Plant, Perilla frutescens, in
gardens., we can be on the lookout for impacts on invasive patches by
aphids, cutworms,  spider mites, or fungal impacts. If you see something,
say something. 

Marc Imlay

Natural Places Committee of the Maryland Sierra Club

 <https://www.hunker.com/13728855/how-to-grow-perilla-leaves>
https://www.hunker.com/13728855/how-to-grow-perilla-leaves 

Common Pests and Other Problems for Perilla Leaves

Perilla is not particularly susceptible to insect attacks, but its luscious
green leaves are bound to attract some of the usual suspects.

*         Aphids are the tiny creepy crawlies that congregate on the
underside of the leaves and produce a sticky deposit known as honeydew. Not
only does this substance ruin the leaves but it also promotes the growth of
sooty mold that can spread to other leaves and may infect the whole plant.
Introducing natural predators like ladybugs and mantises is one control
method. You can also wash off the aphids with water or treat the plant with
<https://www.amazon.com/Garden-Safe-Insecticidal-Insect-Killer/dp/B000BWY6K2
/ref=asc_df_B000BWY6K2/?tag=hyprod-20&linkCode=df0&hvadid=416926195104&hvpos
=&hvnetw=g&hvrand=17885515901441790033&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcm
dl=&hvlocint=&hvlocphy=9032127&hvtargid=pla-871183807189&psc=1&tag=&ref=&adg
rpid=97671764607&hvpone=&hvptwo=&hvadid=416926195104&hvpos=&hvnetw=g&hvrand=
17885515901441790033&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9032127&hvt
argid=pla-871183807189> insecticidal soap.

*         Cutworms live in the soil and attack young seedlings, often
severing the stalks in half. To keep them away, make collars by cutting the
bottoms out of paper coffee cups. Put one around each seedling. Remove weeds
because that's where cutworms lay their eggs.

*         Spider mites are a little bigger than aphids, and they suck the
juices from the leaves, producing whitish spots that make the leaves
unusable. As you do with aphids, you can spray these off with water or
control them with insecticidal soap.
<https://www.amazon.com/BONIDE-PRODUCTS-127-037321001270-Repellent/dp/B000BO
B7UW/ref=asc_df_B000BOB7UW/?tag=hyprod-20&linkCode=df0&hvadid=167116476898&h
vpos=&hvnetw=g&hvrand=15578251479169155502&hvpone=&hvptwo=&hvqmt=&hvdev=c&hv
dvcmdl=&hvlocint=&hvlocphy=9032127&hvtargid=pla-311541481911&psc=1> Hot
pepper wax will also control them and keep away deer and rabbits as a bonus
but be sure to wash the leaves well before eating them.

Common Diseases for Perilla Leaves

Because perilla likes to grow in slightly moist soil, it isn't as vulnerable
to bacterial and  <https://www.hunker.com/13405704/antifungal-for-plants>
fungal diseases as many other plants, but occasionally, some problems may
occur.

*         Damping off is caused by a fungal infection and can prevent seeds
from germinating or can cause young seedlings to wilt and die for seemingly
no reason. It occurs when the soil is too wet or it contains too much
nitrogen and the air temperature is above 68 degrees. Avoid it by refraining
from overwatering or overfertilizing and provide plenty of space between
seedlings so air can circulate.

*         Downy mildew creates gray patches on the underside of the leaves
and makes them unusable. You can also control this disease by spacing
seedlings to allow air to circulate.. When you water the plants, water the
roots only and avoid getting the leaves wet.

*         Rust is caused by a number of fungal diseases, and it leaves
rust-colored deposits on the leaves and stems. Remove infected plants and
avoid planting in that location the following season.

References

 <https://www.hunker.com/user/chris_deziel> 

 <https://www.hunker.com/user/chris_deziel> Chris Deziel

Chris Deziel is a contractor, builder and general fix-it pro who has been
active in the construction trades for 40 years. He has degrees in science
and humanities and years of teaching experience. An avid craftsman and
musician, Deziel began writing on home improvement topics in 2010. He worked
as an expert consultant with eHow Now and Pro Referral -- a Home Depot site.
A DIYer by nature, Deziel regularly shares tips and tricks for a better home
and garden at Hunker.com.

Read More <https://www.hunker.com/user/chris_deziel> View Work

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Posted by: Harry Pavulaan <harrypav at hotmail.com
<mailto:harrypav at hotmail.com> > 

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