Lupine Plant Diseases - Controlling Diseases Of Lupines In The Garden

Lupine Diseases

Oedema. Oedema occurs in lupines when the plant's roots malfunction and begin taking up more water than the plant can handle. ...
Parasitic Nematodes. Nematodes are worms that infest lupines and feed on their roots as well as the interior of the plant. ...
Powdery Mildew.

What is wrong with my lupins?

Lupines are also subject to a variety of fungal diseases, including downy mildew; powdery mildew; basal and root rots; gray mold flower and leaf blights; and rust. Fungal diseases usually show up on the leaves in the form of spots, raised bumps or a powdery film.

Why are my lupines dying?

Sclerotinia stem rot – White, cotton-like fungus grows around the stem, and parts of the plant above it wither and die. The fungus lives in the soil and mostly affects plants in wet regions. Don't plant lupines in the same spot again for several years after this Sclerotinia stem rot occurs.

What diseases do lupins get?

The lupin is a stalwart of the cottage garden, available in a huge range of colour combinations. Unfortunately, it is susceptible to a fungal disease called lupin anthracnose, which in wet weather can cause severe dieback.

What pests attack lupins?

PESTS AND DISEASES OF LUPINS

In particular the Giant Lupin Aphid may attack your plant and if left to their own devices the result will be poor flowers and foliage which is open to further attacks from fungi. Spray lupins with a systemic insecticide at the very first signs of aphids which is generally May time.

Do you deadhead Lupine?

When grown in their preferred conditions, lupines require very little care. Be sure to deadhead your plants (remove spent flowers) to encourage additional blooming. And water them during periods of dry weather.

What animal eats lupins?

Lupins in my small flower border - at least some were successful! It helped, and some of the plants developed splendid flower spikes and were foraged upon by bumblebees, however, some of the plants were again attacked by slugs and snails – including the flower heads.

Will lupines spread?

Lupines are deep rooted and do not spread except through re-seeding. Seeds will not come true to the original variety planted, but will eventually revert to blue-violet and white.

Should you cut back lupines?

Pruning lupines – which are also spelled "lupins" – will prolong their blooming and improve their appearance, but cutting back lupines or removing too much growth can harm or even kill the plants, so it's vital to take no more growth than is necessary to remove the spent flowers.

How do you take care of lupines?

Watering: After planting lupines, keep the soil evenly moist to ensure good root development. Once your plants are deeply rooted, they can tolerate dryer conditions and will only need water during periods of drought. Applying a layer of mulch will help lock in soil moisture and keep the roots cool.

How long do lupins last?

Lupins are tap-rooted members of the pea family and therefore difficult to divide into many pieces. They are not long lived, they may last for seven or eight years.

Why are my lupins curling?

Why are my lupines curling. The stalks are curling. . . as well as the leaves. There are, however, small flower blooms. Curling is typically caused by a pest of some kind, such as aphids or whiteflies.

Do lupins fix nitrogen?

Lupines are decorative as well as useful in a garden because of their ability to fix nitrogen from the air. ... Plants belonging to the Legume family like Lupines are often called a Nitrogen fixer. They can get this element out of the air with the help of symbiotic bacteria that live in nodules on their roots.

How do I get rid of lupins?

Wait until spring to kill the lupine after the foliage fully develops but before plants begin to flower. Alternatively, you can wait until fall when flowers have finished blooming, but before the foliage dies back to the ground. Treat the lupine on a sunny day and after any morning dew dries from the leaves.

How do I get rid of aphids on my Lupine?

Spray affected lupines with a strong blast from a garden hose to dislodge the slow-moving insects. They often are unable to reattach, and die. Insecticidal soaps are also very effective against aphids if used often, so that subsequent generations are destroyed.

Does diluted washing up liquid kill blackfly?

Spray with a weak solution of washing-up liquid and water, as this kills on contact don't forget the undersides of the leaves. ... This also kills the eggs and the larvae so don't forget the undersides of the leaves and in the leaf axils.

Do lupines like sun or shade?

Lupines prefer moist, sandy, well-drained soil and cool temperatures. They can succeed on heavier soils, but you really need to loosen the soil for their long taproots. Select a spot in full sun or light shade. Loosen the soil to a depth of about 1 to 1-½ foot.

What do you do with lupins once they have flowered?

Deadhead lupins once flowers have faded and you should be rewarded with a second flush of flowers. In autumn, cut lupins right back to the ground after collecting seed. Lupins are not long-lived plants – expect to replace plants after about six years.

Do lupines bloom every year?

In general lupines will bloom once, but may produce a second flush of bloom in late summer if cut back after blooming.

Are lupines toxic to dogs?

In the case of lupine poisoning, the leaves, seeds, and pods are most toxic. Unless your pet has been grazing consistently on large amounts of the lupine plant for several days, there may not be obvious symptoms to aid in the diagnostic process. ... There is no test specific to lupine poisoning in dogs.

How do I stop snails eating my lupins?

You could try putting crushed egg shell around the base of the lupins, or coffee grounds, or a mulch of chippings, some people say the copper plant bands work as repellants as well.

How do I keep greenfly off my lupins?

Try spraying them with washing up liquid diluted in water. It should kill them although they may not fall from the plant for a couple of days.