aphids up close and personalAlthough I have never (in 20+ years of growing) seen an aphid on a lily growing in the ground here, I certainly have seen them occasionally on potted lilies. I do not consider them much of a threat at our location, but I realize there are many people who do consider them one of the worst pests of lilies. Myself, I only feel threatened when they get into my roses - and that too is rare on those planted in the ground. I suspect Mother Nature has a good handle on controlling them under normal growing conditions as lady bugs are in abundance here, and the best natural control available. I also suspect the reason potted lilies are susceptible to attack is their proximity to the greenhouses and other potted plants.

 

botrytis on lily budsProbably the most common disease for lily growers, botrytis is a fungal disease which affects the stems, leaves and in extreme cases, the flowers and buds of lilies as well. It is not restricted to affecting lilies, it affects a wide variety of other plants and crops as well, such as canola and annual bedding plants.

 

botrytis on lily stemsBelow is a copy of the information found in one of our old catalogs regarding control of Botrytis - it periodically runs rampant throughout gardens around the world, when favourable weather conditions persist.  It can return again the next year if cleanup is not done properly.

leaf scorch on lily foliageHave you ever seen damage similar to the photo on the left in your lilies? Were you worried or wondering what might have caused it? Speckled yellow, wilted foliage at the leaf tips, turning to brown in some cases, but in almost every case the damaged area remained pliable rather than becoming dry and brittle. Another curiosity to me was the fact that the damage was not seen from stem to tip in most cases. Sometimes it was from the tip down only a few cm, other cases it was extensive, covering up to 30 cm of stem. Often it was found in the middle of the stem with no visible damage above or below that point. In most cases, the plant continued to grow and appeared to flower normally.

MAY 2, 2007
by Lynnette Westfall

lily beetleIt is with a heavy heart that I must report that the dreaded Lily Leaf Beetle is alive and confirmed to be in Alberta. Recently, I was contacted by a lady in Airdrie who described in detail the beetle, larvae, and the swift and destructive damage to her lilies, as well as to her neighbors lilies over the past 2-3 years. She related how she handpicked hundreds of beetles last summer and had tried every known organic method of control with no success. She tried to drown them in water and also bake them in a sealed jar left in the hot sun all day, she was disappointed to realize neither control phased them a bit. She also reported that her neighbour had been infested first and had since removed every lily in her garden. Neither of them knew until speaking with me what it was, despite taking samples to various garden centres in the Calgary area asking what it might be. I should also tell you that I have had unconfirmed reports of red beetles and damage to lilies in the Red Deer area, but these people have not followed up with me again.

 

lily-leaf beetlePlease read the article in this link, written by Crystal Ernst.  Crystal is, in my opinion a leading researcher (and Canadian too!) on this pest.  She has been the guest speaker at a few seminars to lily society members in North America and provided some useful insight into the habits of the lily leaf beetle.

 

beetle card1 slideA bug to strike fear in the toughest of lily growers!

We are fortunate enough to grow in an area where the lily beetle has yet to make an appearance, and we are extremely thankful! We have much reason to be so thankful as this dreaded little beast can do an incredible amount of damage to huge populations of lilies in a very short time!

 

 

lily beetleA bug to strike fear in the toughest of lily growers and gardeners!

We are fortunate enough to grow in an area where the lily beetle has yet to make an appearance, and we are extremely thankful. We have much reason to be so thankful as this dreaded little beast can do an incredible amount of damage in a very short time!

 

beetle cardThis page features a copy of the front and back of a reference card we included with orders for a number of years.  It is a basic outline of what to look for and what to do if this pest is found in your garden.  Please feel free to print and keep for reference.

 

Visit the tracker site to add your location if the Lily Leaf Beetle is active in your garden