Pests Ideas, Tips & Guides

If there’s one thing that makes gardeners gnash their teeth with frustration, it’s watching their favourite plants being eaten by pests. We’ve moved on from the ‘any bug is a bad bug’ mentality, and many chemical controls are being removed from sale amid safety fears, but this doesn’t mean that we have to abandon hope of an attractive and productive garden.

There are many ways you can keep your slug population under control without resorting to toxic slug pellets:

Now that the arbor is up, I need to think about surrounding it with plants. I have climbing achocha and mashua which might (hopefully) provide some shade. Once you’ve eliminated the possibility of heat stroke, you’re left with that other perennial summer problem – pests. How do you stop bugs great and small from bugging you, or committing suicide in the jug of Pimms?

For two glorious years, this garden was cat-free. And then just at the point where the garden was mostly ‘finished’ and all I needed to think about was playing with plants, a feral cat moved into the neighbourhood. And started leaving ‘gifts’ in the raised beds.

Did you sleep well last night? You would not have felt so cosy if your mattress had been infested with bed bugs (Cimex lectularius), an ancient pest that is making a comeback in the modern world, complete with pesticide resistence. Looking for a new solution to this age-old problem, scientists from the Universities of California and Kentucky took their inspiration from reports written in the first half of the twentieth century (sadly not available online) that describe the use of bean leaves (in Eastern Europe) to trap bed bugs so that they can then be destroyed.

Hello, Gardeners of the Galaxy! Just in time for Halloween, Emma the Space Gardener presents a truly terrifying episode, involving our gardening nemesis. When you learn just how many snails have been sent to space, you’ll be horrified! 

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Following my summer post Fine and Fantastic Fruiting Fungus I have been out in the local woods seeking these new pictures.

May all your winds be zephyrs and all your gales be miss spelt girls

Sources Tetranychus urticae Female of the red form of the spider mite Scale : mite body length ~0.5 mm Creative commons by Gilles San Martin, on Flickr Chuck Crandall ‘Whats wrong with my plant?’

There are a lot of things to go wrong with plants in the greenhouse but a red spider mite infestation is one of the most frustrating. This tomato plant in India has had its day.

Earwigs look worse than the bites they take out of plants. Some years there may be large infestations.

Mulch mulch and more mulch is a must for getting humus into clay soil.

You don’t need to have muscles like Popeye to grow spinach. It is a simple leafy vegetable that is undemanding if given the right conditions.

The dry weather has cause a lot of problems with moldew. (I should have said mildew but that is a Freudian slip I will leave in.) The worst affected in my garden is an early flowering clematis but this rose stem is not far behind.

Woodlice are generally seen as scavengers who eat rotting matter, they are not thought of as harmful to the garden. However, they do chew leaves and stems of tomatoes and cucumber in the greenhouse. They are not true insects but a species of crustacean.

Every gardener wants to have better plants and flowers, but, sometimes we just need to get to the root of the matter so to speak. There is nothing more satisfying than a deep rich loamy soil. Unfortunately, unless you are very luck, you are unlikely to inherit such a soil. Nevertheless it is definitely worth investing the time and energy to improve your soil. Over time looking after your soil will pay dividends.

A late start to the gardening season may not deterred insects. Bees and hoverflies are spoilt for choice of nectar rich flowers in the summer months

Sometimes I am too tolerant and generally that is true with whitefly infestations. Perhaps that is because I have not had a serious outbreak or a great deal of resulting damage. So live and let live unless an edible crop is involved. The worst that happens is on houseplants where these sap feeding insects can breed continuously through the year. As a gift to the windowsill they leave a sticky secretion on leaves which drops from the plant. Only in the greenhouse have the white-winged adults taken to flight from tomato plants when disturbed. Adults and the scale like nymphs have secretions that can make plants sticky and prone to sooty mould.

Slugs and Snails

Hellebore sap can cause irritation to skin or an allergic reaction. No part of the plant should be eaten. Hellebores flower in winter or early spring from buds formed during the previous summer. They may benefit from some watering during a dry summer to encourage more buds.

Ants can be an unsightly nuisance and inspire concern. However they do not directly damage plants but are more a sign that you have another pest problem.

Summer is over and we had the first Autumn frost last night 26th September. It was only a light frost and we have some cloud cover for the next few nights so it won’t be as cold tonight. Still I set-too to protect some plants.

Winter and during wet weather are the worst times for moss and algae growth which makes paths wet and slippery. Slippery surfaces are unsightly and dangerous and need treatment.

I originally wrote this last year but now in April I have checked my Chrysanthemum plants in the cold greenhouse and find I am infested! So it must be worth a rerun. Evil weevil grubs eat roots and tubers of your favourite plants. My tuberous begonias were attacked and destroyed by these pesky pests. It is the white grubs that cause the damage as they eat roots and tubers throughout vine weevil puberty to become small black beetles. The beetles will nibble the edges of leaves but it is the laying of eggs that ultimately cause the problem. The eggs become grubs and your Cyclamen, Primula and Camellias become grub for weevils. Pot grown plants are most susceptible to attack but this pest also affects other plants such as Fuchsias, Gloxinia and Strawberries.

Moss will recur if the growing conditions are not changed. Killing moss is not a one time operation. Moss stultifies other plants.

There are potentially as many soils as there are gardens but they can be classified into five types. Heavy Clay Soil Minute particles of clay stick together in a gluey mess when wet and go rock hard when dry. Often clay soil is very fertile. Clay soils can be improved with drainage, coarse grit, or the addition of coarse organic matter as humus.

Mildew is a white powdery fungus that looks unsightly on these leaves. Mildew is a sign of stress in a plant and usually arises from damp air with poor circulation. It is prevalent in my garden now Autumn is here in force. It is of less concern in winter as the cold will take care of the current problem until next year at least.

For gardening purposes Brassicas are a group of vegetables in the mustard family that includes Cabbages, Broccoli, Cauliflower, Calabrese Sprouts and Kale.

Biological controls work best when it is warm and activity is highest. The more pests the more there is for the control to eat and treat.

Early Flowing Rheum Rhubarb

What has got 6 legs, a head, 2 eyes and red wings and  is not a dice game of Beetle. It is the red lily beetle Lilioceris lilii that consumes large quantities of one of our favorite plants.

Grubs of the daddy long legs or species of Tipula attract birds to peck at your lawn. More importantly nthe feast on the roots of your turf.

Get to the root of the problem for bigger better plants. I am a convert to Mycorrhizal Root Grow products that add beneficial fungus around the roots of newly planted stock.