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14 Φεβ 2021 · Thrips are small, slender insects that suck the juices out of the leaves, stems, buds and flowers. They are generally under a quarter-inch in length when they are adults. Common colours for the adults are brown, black or yellow and when in the larvae stage, they are a yellow, greenish colour .
Heavily infested plants will show yellow and brown, almost stippled patches in an irregular pattern, and new growth can look stunted, contorted, or deformed. You may also see sooty black spots along leaves or stems. This is thrips fecal matter, which can also be a vector for disease.
Thrips can be difficult to detect due to their size and because they often hide in the leaf litter or on the undersides of leaves. Spotting the damage they're causing to your plant is often a more reliable way to alert you to their presence.
17 Ιαν 2024 · Usually the first sign of thrip damage is faded or dirty looking leaves. In addition, flower buds may drop, be malformed, or fail to open. The affected leaves will start by turning white or grayish in color, then eventually they’ll turn brown as the damaged areas begin to die.
15 Μαρ 2020 · Blotchy reddish brown discoloration can also be an indication that a thrips infestation is present. They can reproduce asexually, and with no natural predators found in human spaces, they can quickly multiply and cause significant damage. Of all the common houseplant pests, thrips are perhaps the most challenging to deal with.
19 Ιαν 2023 · There are many species of thrips and some feed on leaves, flowers, buds, and even fruit. Damage on leaves may look like white or silver colored streaks. Sometimes the growing points will be contorted. Leaves that have a heavy thrip infestation will appear silvery and brown.
6 Σεπ 2021 · Adult thrips have two pairs of wings and are brownish-yellow or black-brown in colour. Both adults and the immature thrips, known as nymphs, feed on the upper surface of leaves and on flowers. Thrips are hard to see with the naked eye and may need identifying with a magnifying glass.
