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Category: Problems, pests and diseases

Identifying Wisteria Scale Insects and Treatment

Identifying Wisteria Scale Insects and Treatment

Wisteria is prone to scale insects. However, it’s important to know that there are many different types of scale insects, and it’s the specific Wisteria scale insect that can cause serious issues if left untreated. Inm small numbers there not usual;y and issue and can be easily health with removal by hand. They are easier to identify as they are usually much larger than other scale insects at around 10mm wide and have blackish-brown scales. Other scales of insects are…

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Why are my passion flower leaves turning yellow or wilting?

Why are my passion flower leaves turning yellow or wilting?

Your passion flower leaves turning yellow or wilting could be for environmental, biological or care reasons. Most of the time, it’s because there is too much or too little of particular nutrients in the soil that can cause yellow passion vine leaves. Another reason is they have Fusarium wilt which spreads in the soil and the first signs are yellowing leaves. Overwatering, as well as under-watering, can also cause the leaves to become yellow and start to wilt. Read on…

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Why are my passion flowers not blooming?

Why are my passion flowers not blooming?

The problem of your passion flowers not blooming may be due to environmental or biological factors, or because of how you’re attending to them. To give you an idea, pruning at the wrong time can remove most of the stems that produce the flowers resulting in no flowers that year. Feeding them with fertilisers that are hight in Nitrogen encourages lots of foliage growth at the expense of flowers, not enough sun can also lead to no flowers. As you…

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Passion flower problems

Passion flower problems

Passion flower problems fall into one of three categories: environmental; biological; and your care. This article looks the variety of problems that can befall your passion flower climbers and explains what to do about each one. Environmental issues that cause passion flower problems Environmental problems include where you plant your passion flower, how much sun it gets and other situations in your garden. I have a complete article that details this. Please read Passiflora caerulea – growing and caring for…

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Passion flower pests and diseases (Passiflora)

Passion flower pests and diseases (Passiflora)

Passion flowers require relatively little care and maintenance to grow successfully. Once established, they can grow well, left virtually untouched for years. In fact, they are generally problem free with nothing more than a few aphids to worry about most of the time. However, there are a few passion flower pests and diseases that can take a liking to your passion flowers which might make an appearance, as I have found out a few times over the years. With this…

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What’s eating your lupins and how to stop them?

What’s eating your lupins and how to stop them?

I’ve been growing Lupins for over 20 years and, unfortunately, am no stranger to the pests that will take a liking to your Lupins. Generally, Lupins don’t seem to suffer too badly from pests and diseases. However, the two main culprits are slugs/snails (which I class as 1 pest), which usually take a liking to new foliage but will also attack older foliage as shown in my main picture above. The other pests that I tackle on a yearly basis…

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Lupin pests and diseases

Lupin pests and diseases

Lupins are one of my favourite plants, and having grown Lupins for over 30 years, I’m no stranger to some of the many Lupin pests and diseases, and I recently talked about what was eating my lupins here. They are mainly the common ones that affect most perennials including aphids, as well as powdery mildew which is a Fungus, but there are a few more, so in this guide, I explain what they are and what to do about them….

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What’s eating my azalea leaves?

What’s eating my azalea leaves?

Various pests and even a few diseases may be eating your azalea leaves or at least giving the appearance that they have been eating your azalea leaves. I talk about bark scales, leafminers and caterpillars here, among other pests. To find out what to do about any of these, also read my Azalea Pests and Diseases guide, as I cover even more pests and especially diseases. If you have more of an issue with your azalea leaves dropping turning yellow…

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Identify Azalea diseases and pests and how to prevent and treat

Identify Azalea diseases and pests and how to prevent and treat

Azalea diseases and pests of various kinds affect azaleas, and some are more common and more of an issue than others. Common diseases include powdery mildew, leaf spot disease and rust. While Phytophthora root rot and Galls/canker as less common, they can be much more serious. Pests include the usual aphids, which can be treated with soapy water or pesticide bug killer if needed. Other pests also include scale insects, caterpillars, leafminers, roundworms and spider mites. I discuss each of…

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Why are my azalea leaves turning yellow and falling off?

Why are my azalea leaves turning yellow and falling off?

The main reason your azalea leaves are turning yellow is probably an iron deficiency caused by poor soils or not enough nutrients in the soil. This is usually linked to the soil not being acidic enough. Azaleas like Rhododendrons and Pieris need an acidic soil with a ph rating of pH 4-6 with pH 5.5 being perfect. Any above 7.0 is too high and considered alkaline and the leaves will turn yellow. Two other causes are a lack of water, you…

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