Magnolia Scale, Yikes!

magnolia scale

A while ago, when trimming off a few lower branches, I noticed sticky stuff dripping from my magnolia tree. Upon closer inspection, I saw blackened leaves, as well as a black residue on my white veranda rails and porch. Next came the swarms of hornet-like bugs attracted to the sugary residue. What a mess! Apparently, my tree is infested with magnolia scale, as described by the University of New Hampshire:

Magnolia scale feed on plant sap with piercing-sucking mouthparts and excrete a sweet, sticky fluid called honeydew. Unsightly black fungus called sooty mold often grows on the honeydew, making the leaves look dirty and reducing photosynthesis. Honeydew also attracts sugar loving insects such as ants and wasps.

University of New Hampshire

The Stages of Magnolia Scale

Instead of laying eggs, the adult female magnolia scale insects give birth to young crawlers, which then molt into adults sporting a waxy, outer soft shell that protects their bodies. If you discover whitish patches on the branches of your magnolia tree, that would be the time to treat the tree. Otherwise, the tree will suffer greatly.

Treatment for Magnolia Scale

Treating the scale insects at this stage is easiest. My magnolia tree is not yet fully grown so I can still reach all the branches, especially when standing on my veranda. I used another of my trusty Melaleuca products, a concentrated solution of thyme and lemon, called Solugard. I coated each white patch and sprayed the veranda and railing. I may have to repeat the treatment, will keep you posted.

You can also prune out infected branches and twigs if there are not many involved. Most of my branches are so that was not an option. Another solution is a pesticide specifically for the magnolia scale; you probably know what I think about pesticides.

Also suggested is a late April (before the buds open on the tree) application of dormant horticultural oil such as neem oil. This early treatment will kill the magnolia scale insects that have overwintered on your tree.

A cold winter helps too. Our last few winters here in Ottawa have been unusually mild so more of these insects survived on the branches.

Bring on the cold, just not yet please. We have several more months until I am ready for that weather, hoping for another beautiful autumn first.

Before the Magnolia Scale

I will be heartbroken if this gorgeous tree does not survive. Fingers crossed I caught the scale in time

Cold Weather Good for Gardens

cold weather good for gardens

As we are in the grips of a cold snap, I feel the need to remind you that cold weather is good for your gardens. The survival of your plants and the bugs that try their darndest to destroy them depends on just how low the mercury drops and for how long it stays low. Snow levels also come into consideration for both plant and insect survival.

Insects are amazingly resilient, doing whatever they have to to survive. Based on how well they can tolerate cold temperatures, there are two types of insects. Freeze avoidance insects are those that seek a warm spot in which to hibernate, but can only handle a small amount of cold before their bodily fluids freeze, killing them:

Japanese Beetles

Those annoying Japanese beetles that can strip plants bare in one day do not like cold weather. Extensive stretches of cold below -15C not only kill them off but also destroy the eggs they lay in the soil of your gardens and containers. The research will show you that any season where Japanese beetles were particularly destructive can be blamed on a preceding warm winter.

Fleas

Fleas are not much of a concern in gardens, but they are for your fur babies. Fleas are even more sensitive to cold than Japanese beetles, as their larvae, pupae and eggs can not tolerate temperatures below freezing. For a stretch of below zero temperatures that is, at least ten days worth. The longer the stretch of cold weather lasts, the fewer fleas can effectively reproduce.

Mosquitoes

Mosquitoes try to find a spot to overwinter, but many are killed off by cold weather too. Unfortunately, though, many of their eggs are winter-hardy to some degree, just waiting to hatch when temperatures warm up.

Ticks

Unfortunately, many tick species are able to bury deep into piles of leaves and debris, keeping themselves warm enough to survive winters. A winter with lots of snow only adds to their survival as the snow acts as insulation.

The colder the weather, the less chance of tick survival. Extremely cold weather has been known to eradicate some mosquito species, such as the Asian tiger mosquito that carries the Zika virus.

Ash Borers

Ash borers are also termed freeze avoidants meaning they seek warmth, but will not die unless their bodily fluids freeze. Research has shown that ash borers can tolerate temperatures down to minus 30C degrees.

Freeze Tolerants

Some insects, such as cockroaches and wooly caterpillars are completely unperturbed by cold weather. These are called freeze tolerants, withstanding even the coldest temperatures around the world.

Fungal Pathogens

Lack of moisture kills off this annoying garden problem. So cold, snowless winters are their biggest destroyers. Unfortunately, severe cold and lack of snow are one of the best ways to kill off perennial plants too. Plants need snow to protect them from the cold too.

Conclusions

A long deep freeze in winter will most likely reduce the destructive bug population in your gardens. Even more damaging to insects is a deep freeze after soil temperatures have started to warm up in spring. At this stage in their reproductive cycle, insects and their eggs will be even more susceptible to a cold snap.

Another reason insects do not tolerate extended winters (late arrival of spring) is that as they “hibernate” they survive on their supply of stored fat and sugar. If these stores are depleted before spring arrives, the insects cannot survive.

Unfortunately, many plants do not handle drastic freeze, thaw cycles well. So, as long as the snow coverage is deep enough to insulate the plants, your gardens will survive cold spells. I have been known to shovel snow onto my gardens to keep my plants protected.

photo credit

Wedding Planning with Gardens4U

Recently I told you of a project Gardens4U has been working on all summer. To recap, a client asked me to spruce up the gardens at his parents farm for his daughter’s wedding. Although Gardens4U has not done extensive wedding planning, this project was so much fun.

Where to Start the Wedding Planning

After walking around the extensive property with the client last April, the wedding planning began. I started by working on multiple neglected garden beds. Containers were planted as soon as the last frost date arrived in May, well in advance of the wedding date to give the annuals time to settle in.

My original commitment was one day a week, including through the scorching heat we experienced this summer. Of course, my visits to “the farm” increased in recent weeks as the wedding date drew closer.

Most of the time I remembered to take before and after pictures of the gardens and planters. I so wanted to snap a few last-minute pictures the morning of the wedding but did not want to intrude on the hustle and bustle going on. I will have to wait patiently for the photos I know my clients will share.

Garden Beds

The beds I worked on are referred to here according to their location on the property or their function during the wedding. Pictures are posted in chronological order.

House Bed, 3 Sections:

I cannot take credit for the gorgeous, flagstone sidewalk or lush lawn enhancing these beds at the front of the home. Due to the large expanse of lawn and the poor condition it was in, hydroseed (a sprayed-on product) was used with awesome results. A beautiful lawn does wonders for increasing the beauty of gardens…

Ceremony Site:

There is no “before” picture for this bed as there wasn’t a garden there, just the edge of the yard overgrown with trees, scrub brush, and a few transplanted hostas.

Shady Sitting Area:

My client had a vision for this bed, I really just followed his instructions. And chose and planted the appropriate perennials for a shady spot. We then used some of the containers to add some colour to the area…

The Mint Bed That Became a Dahlia Bed:

For the resident chef, I moved the mint into a new herb garden. At least I attempted to move it. Mint can be very invasive, there are still shoots sprouting in that bed.

Sunny Beds:

These two beds were the bride’s Omi’s (grandma) flower gardens, with the one on the right home to her beautiful peonies. Unfortunately, they were overgrown with no distinct shape and neglected since her passing several years ago.

Sunflower Bed:

This sunflower bed was supposed to be spectacular, at least that’s the vision I had. Tall, majestic, golden yellow sunflower blooms against the backdrop of the rustic family barn bordered by the bride’s Omi’s (grandma) long-established daylilies. We tried to transplant many of the daylilies into some semblance of order, but thanks to their poor performance through the drought conditions this summer I had to cut them right back. They did revive, but not as fast as I hoped they would.

Rock Garden:

I don’t have much experience with rock gardens but I enjoyed choosing creeping plants and tiny succulents to tuck into the crevices. Unfortunately (for the wedding guests) not many of these types of plants are fall bloomers. Next spring and summer it will look gorgeous!

Rodent and Insect Damage Deter Wedding Planning

My major challenge during this project was the battle I had keeping the sunflowers intact in their designated bed against the barn wall.

I planted close to thirty sunflowers, most grown from seed on my back veranda. Unfortunately, the squirrels snapped off their growing stalks faster than I could plant them. I actually witnessed a squirrel hanging on the barn wall, mid-pounce, as he/she aimed for the flower head of one of the tallest sunflowers.

So frustrating and disappointing!

The other challenge was keeping the dahlia blossoms from becoming a snack bar. Earwigs or whatever other insect devoured them shortly after they appeared and before they could mature. I ended up bringing a pot of dahlias from my back deck to fill in the bare spots.

Containers: Thrillers, Fillers, and Spillers

We used lots of planters around the property to add colour and drama. Some came from the client’s home that I had created earlier in the season. The rest I brought over from my own home collection.

Silver Lace Vine

I had planned to drape strands of silver lace vine (from my garden) in the trees to look like the beautiful Spanish moss so prevalent in the south. The wedding planner, who is also a florist, intercepted me though as I carried trays of it down the driveway. She asked for the silver lace to adorn the dining table and archway at the ceremony site. How could I refuse?

Conclusions:

Well, the big day arrived and thankfully the sun was (albeit off and on) shining! We were all nervous as it had been raining, torrentially at times, for the previous two days.

The problem with creating these gardens in one season is that most plants take a while to mature in their new homes. Unless of course, you spend a fortune and choose fully mature plantings. Like most gardens I plan and create, these garden beds look great this season but will look spectacular next summer and for years to come.

A few years ago I created bouquets and containers for my son’s wedding. Then a few years later I created table arrangements for a friend’s son’s wedding. I have enjoyed these wedding projects so much that I am considering adding wedding (or other events) planning to my Gardens4u list of services!

What do you think? Contact me if you are interested in my wedding planning services.