|Series||Leaflet / Agricultural Development and Advisory Service -- 766, Leaflet (Agricultural Development and Advisory Service) -- 766.|
|The Physical Object|
|Pagination||1 sheet :|
Though nearly invisible, thrips can cause enormous damage to gladiolus. Here’s how to identify and control them, with thanks to the experts at the Clemson Extension Home and Garden Information Center (), the University of Florida IFAS Extension (), and Gladiolus thrips (Thrips simplex). Pest description and damage Adult thrips emerge milky-white but soon turn brown and begin feeding. The female is approximately inch ( mm) long and slightly larger than the male. The egg is about inch ( mm) long, opaque white, smooth, and bean-shaped. Gladiolus (from Latin, the diminutive of gladius, a sword) is a genus of perennial cormous flowering plants in the iris family (Iridaceae).. It is sometimes called the 'sword lily', but is usually called by its generic name (plural gladioli).. The genus occurs in Asia, Mediterranean Europe, South Africa, and tropical : Iridaceae. Gladiolus plants are subjected to Thrips, especially the ones that grow and bloom in warm weather. The standard reference book for the South African Gladiolus species is probably Goldblatt & Manning's hefty Gladiolus in Southern Africa. Another useful reference is Gladiolus in Tropical Africa.
Gladiolus plants are a smart choice for gardens where space is a premium. As annuals, the root system is limited, giving it a small footprint for the vertical accent these plants deliver. Even balcony gardens can accommodate a dozen gladiolus corms in a container. Synonymy. The gladiolus thrips was first described by Morison () as Physothrips simplex from five female specimens collected on carnation flowers, Dianthus caryophyllus, from Urrbrae, South holotype and one paratype are deposited in the British Museum. Moulton and Steinweden () described this thrips under the name Taeniothrips gladioli from Ontario, . When you plant your gladiolus, you should check out the corms before planting them. If they feel soft or are somewhat crumbly, they are no good and should be thrown away. Always start with sound corms to prevent gladiolus problems. If the leaves on your gladiolus are somewhat streaky, you may be infested with thrips. Thrips are little insects. Gladiolus, Bulb (10 Pack) White,Purple, Blue,RED,Yellow and Orange Gladiolus, Perennial Gladiolus Bulbs, Plant Now for Fall Blooms! out of 5 stars 4 $ $
Gladiolus corms. How to Plant Gladiolus. To ensure large-sized blooms, plant corms that are 1¼ inch or larger in diameter. Set the corm in the hole about 4 inches deep with the pointed end facing up. Cover with soil and press firmly. Space the corms 6 to 8 inches apart. If you grow gladioli primarily for cut flowers, plant them in rows. Adult gladiolus thrips are 2mm in length, brownish-black and have narrow, elongate bodies. Adults can lay up to eggs at a rate of one or two per day. These are often deposited on the younger leaves or in flower buds of host plants. The immature stages, nymphs, are pale yellow. There are three nymphal stages (instars). The gladiolus thrips (Figure 1) causes deformities and discoloration of gladiolus flowers, and corms (bulbs) become soft and are prone to decay. Figure 1. Ventral view of an adult female gladiolus thrips, Thrips simplex (Morison). Photograph by Laurence Mound, Australian National Insect Collection, Commonwealth Scientific and Industrial. The biggest threat to gladioli are thrips, tiny flying insects that feed on the foliage and flower buds. Because thrips are hard to spot without a magnifying glass, watch your glads for signs of thrip damage, which includes silvery streaks and small .