Do you have a problem with viburnum beetle infestation ? A honorable spray can easily decide it , but when is the good meter to do it so you may prevent an infestation before it eat aside all your leaves ? We researched this matter and here ’s what we found out .
The best time to spray for viburnum bettles is between mid - April and early May . This is the start of springtime when the larvae get down feeding .
If you eliminate them at this early stage , you could prevent them from turning into adult beetles which causes bigger damage to your genus Viburnum plant life .
Read on below to learn more about the genus Viburnum mallet ’s life sentence cycle and why the right timing when spray is very crucial for pest direction .
When Is The Best Time To Spray For Viburnum?
genus Viburnum folio beetles are an invasive pest that specifically feed onviburnum plantspecies .
When you have an infestation , the genus Viburnum beetle will chew on the leaves creating small holes . Eventually , this will pass todefoliationor the premature and far-flung loss of leaves .
Plant owners lean to spray for viburnum beetles once they start seeing adult pests . However , spraying them at this stage intend they have already caused significant damage to the works .
To prevent widespread industrial plant damage , spraying should be done when you see newly issue larva . This is because viburnum beetle start feed betimes at this level and can already cause significant damage .
Another thing is , adult beetles are much harder to essay out and control because they tend to fly around . Larvae on the other manus , just detain on the foliage and are easy to locate .
See the pic below for an image of the larva .
The larva will feed on the leaves for a few weeks as they decease through threeinstarsor stages of development . They will eventually maturate to a length of10 to 11 mmlong . This pupal phase will last for about 10 daylight .
Once the larva matures , it will go into the soil andpupate . after on , it will emerge around June as a fully grown adult genus Viburnum mallet .
The females will lay their eggs during the summer calendar month towards October . They will chew on twigs and lay around 5 to 8 bollock and cover them up with the masticate wood for protective covering .
One female can lay up to 500 eggs from summer to October . If undisturbed , these testicle will persist in place and overwinter until it ’s time for them to hatch the next springtime .
Signs Of Infestation
When you see holes with lace - like approach pattern on your genus Viburnum plant life , chances are , the larva already started feed on the farewell . It is not easy to spot the larvae compared to the adults because they run on the bottom of the leaf .
If the holes are bragging and oblong in shape , it means that adult genus Viburnum mallet are already feeding on the plant . You will affirm this especially if you see it around the months of June onwards .
What Do You Spray Viburnum Beetle With?
For chemic control of genus Viburnum foliage beetles , you may use product that containspinosads , insecticidal soaps , pyrethrin , orchlorantraniliprole ( acelepryn ) .
you could use two types of chemical insecticides : contact and systemic . inter-group communication insecticides only work when it comes in lineal contact with the pest , while systemic insect powder are occupy by the industrial plant ’s organisation causing it to rebuff pests and insects .
Spinosads
Spinosad is an organic pesticide from the fungusSaccharopolyspora . It is used as a physical contact insecticide that canknock backboth grownup and larvae viburnum beetles without causing damage to beneficial louse in the immediate area .
Below is an example of an insecticide product with spinosad .
View this Monterey spinosad concentrate insecticide on Amazon .
Insecticidal Soaps
Insecticidal soaps are a multipurpose solution for the control of pests in the garden . It is a ready - to - use contact insect powder that can kill viburnum larvae . Unfortunately , it is not unassailable enough to kill grownup viburnum beetle .
hold in out this Bonide multipurpose insecticidal easy lay on Amazon .
Acelepryn
Aceleprynis used for the systemic control of viburnum leaf mallet and other pests and larva . It is typically used for skunk , lawns , and landscape to kill pests without harm good insects .
Check out this acelepryn suspension dressed ore on Amazon .
Pyrethrin
Pyrethrin is an constitutional chemical compound by nature derived from chrysanthemum blossom . It is used as an insecticide to control and manage various cuss and insects , including the genus Viburnum beetle larvae .
Check out this pyrethrin garden insect spray mix on Amazon .
Spraying Precautions
While chemical sprayer are effective to get disembarrass of genus Viburnum beetle , it is also important to take caution to check that you wo n’t be killing other beneficial worm . For example , apply only insecticides after bloom so as not to shoot down pollinator .
count using chemical substance sprays only when you have an plague . Otherwise , endeavor to employ non - chemical means to manage them . Here are some idea :
Another path to prevent the presence of genus Viburnum beetle is to lop and destroy twigs that check the eggs of these beetle . gibe around the months of September and October , just before the cold season , if there are eggs laid by the female mallet .
Can You Spray Viburnum Beetles While At The Pupal Stage?
The pupal point is when the larva has fed itself enough and settle down down into the soil to pupate . It may have crossed your mind to kill them at this leg , but unfortunately , you may only damage the plant . cut into up the territory to disturb the pupa will only damage the plant ’s roots .
The larvae usuallycrawldown the trunk of the industrial plant and dig into the soil . Some suggest putting a muggy roadblock on the trunk to pin and prevent them from go down into the grease to pupate .
Thus , it is well to concentrate on killing the larvae at the beginning stage to prevent them from turn into adults . If some adults come out , killing them can forestall females from developing eggs .
What Eats Viburnum Beetle?
One manner to manage viburnum foliage beetles without using chemical sprays is to keep beneficial dirt ball and creature present that in reality prey on them .
Someinsectsand animals that you should have around and prey on genus Viburnum beetle let in :
What if you do n’t see any of these around your garden ? No concern , you may actually meet your local glasshouse to buy some . In fact , some can even be put online .
Check out these real live ladybugs on Amazon .
What To Do After Defoliation?
If your industrial plant experienced a knockout mallet attack and defoliation , what should you do ? Should you prune the plant life or leave it alone after spraying ?
If it is only the first or second sentence the plant has been defoliated , do n’t worry because your viburnum will flick out again .
You may choose to lop it or not , but ensure to prune it during the wintertime months when the plant is inactive . This will give you new and fresh leafage growth come springtime .
If your works has experienced retell onset over the years , then it ’s possible that your viburnums may be in worry , especially if it is the variety that is susceptible to infestation .
If you live in an area where these beetle are recurring pests , you may need to opt a genus Viburnum potpourri that is more resistant to these pests . Theresistanthosts admit :
How Do I Get Rid Of Beetles Permanently?
alas , there is no way to completely eradicate genus Viburnum leafage beetles and you ca n’t forestall them from amount back . The best thing you’re able to do is to verify and preclude them from spread out by spraying every fountain once you see larvae feeding .
Wrapping Up
Both the larvae and grownup viburnum beetle are very destructive . It is full to spray them at the start of spring before the larvae play into grownup . Doing so will minimize the damage to your plants .
give thanks you very much for taking the time to record all the room through . We hope we were able to answer your question on when to spray for genus Viburnum beetle and forestall it from destroying your plant .
For more pest control tips , discipline out these other articles below .
Does Grub Control Kill Japanese Beetles ?
Where Do Nipponese Beetles Go At Night ? [ And How To Keep Them off ]
How To Get Rid Of Nipponese Beetles On Roses
