1996. Photograph by Ronald F. Billings, Texas Forest Service, www.forestryimages.org. The cocoon is a reddish-brown paper-like cylinder with rounded ends (Wilson 1978). Females are mostly black with a reddish brown head, and occasionally white on the sides of the abdomen. Although not native to Florida, Swiss mountain pine (Pinus mugo) is occasionally used as a landscape plant in northern Florida, and is a documented host and preferred food source of the redheaded pine sawfly in more northern climates (Baker 2010). Redheaded pine sawfly. Sprays may be ineffective on a small scale, as the insecticide may not penetrate deep into the foliage and therefore not eliminate a majority of larvae. Photograph by G. Keith Douce, University of Georgia, www.forestryimages.org. Of particular vulnerability are commercial pine stands during reseeding cycles, where large populations of a single species at a similar age provide both young foliage and trees of a desirable height (under 4.6 m or 15 ft) for redheaded pine sawfly infestation (Wilson 1978). Sawfly. The mature larvae are yellow to yellow-green in color and have four to eight rows of black spots lengthwise along the body. Figure 4. The ovipositor of all adult female sawflies is saw-like, and is likely where the common name for this group (suborder) originated (PADCNR 2010). Mustard sawfly : 7. (Adapted from Atwood 1961). Black mustard scientific name is Brassica nigra; white mustard genus is snapis. Redheaded pine sawfly larvae may lift the front and rear portions of their bodies in a defensive mechanism if threatened and regurgitate a chemical sequestered from the pine needles in an attempt to thwart potential predators. Apple root knot nematode. Pennsylvania Department of Conservation and Natural Resources. Older larvae eat the entire needle, and if complete defoliation occurs, groups of larvae will move to the nearest acceptable food source and continue feeding. In Canada and the northern United States, jack pine (Pinus banksiana), and red pine (Pinus resinosa) are the preferred food sources for redheaded pine sawfly larvae. The female fly lays the eggs singly on the young leaves, close to the margin. Redheaded pine sawfly. Mature larvae are approximately 2.5 cm (1 in) long, and have a red to reddish-orange head. Mustard Sawfly has become a serious pest of mustard, attacks all types of plants in family Brassicaceae like mustard, rapeseed, cabbage, cauliflower, knol-khol, turnip, radish etc. Impact (1 is very low - 5 is very high) 4. Division: Magnoliophyta. Cocoons of the redheaded pine sawfly, Neodiprion lecontei (Fitch). Each larva has three pairs of thoracic legs and six to seven pairs of prolegs (Hyche 1999). Specimen record from the collection in the Natural History Museum (London, UK)., London, UK: Natural History Museum (London). Mustard sawfly grubs chew shot holes through leaves, and they can completely skeletonize a plant if you have a bad infestation. Tenthrède -- Sawfly Nom scientifique – Scientific name : Tenthredinidae Macrophya annulata. Larval stages are caterpillar-like, with a well developed head capsule and three pairs of true legs behind the head and a hairless body. Notice the lack of a thin, wasp-like waist. 2000. Main susceptible plants: Mustard, Cabbage, Cauliflower, Radish, etc. A few names on this list will fascinate those interested in the derivation of plant names: Achillea millefolium, Adonis amurensis, and Bougainvillea. Photograph by Albert Mayfield, Florida Department of Agriculture and Consumer Services, www.forestryimages.org. Management of Major Diseases and Pests of Mustard in India S. J. KOLTE Ex-professor, Department of Plant Pathology, G. B. Pant University of Agriculture and Technology, Pantnagar-263 145, India Mustard (Brassica juncea), the major edible oilseed brassica crop in India, is extensively Sinapis alba L. Preferred Common Name. Adults emerge by cutting the tip of the cocoon off, leaving a circular hole in one end of the cocoon which resembles a cap. In approximately four weeks, larvae emerge and feed on the pine needles in large gregarious groups. The spitfire sawfly ( Perga affinis, family Pergidae) is a hymenopteran insect found in Australia. Neodiprion lecontei is an important defoliator of commercially grown pine, as the preferred feeding conditions for sawfly larvae are enhanced in monocultures of shortleaf, loblolly, and slash pine, all of which are commonly cultivated in the southern United States. Sawflies and leafcutting bees. peak during November. Adult female redheaded pine sawfly, Neodiprion lecontei (Fitch). Unknown. 2010. Sometimes they eat up entire lamina of leaf leaving behind the midribs. As many as three generations a year may occur in Florida (Buss 2010). 1003 pp. Larvae are also susceptible to harsh weather conditions such as extreme heat and cold. nllan yormal oJ trccaut, ... Scientific publishers, Jodhpur. It is a pest of cold weather and is generally active during October to March. Preferred Scientific Name. Adults inflict damage by act of laying eggs with the help of their saw like ovipositor. In another study (Vengris et al., 1953), corn was compared with six annual broad-leaved weeds and one annual grass (Table 6.4). Numerous sawfly species are found in North America. Needles that have eggs laid in them look spotted or banded with alternating green and yellow patches. Figure 9. Mustard sawfly : 7. Scientific pest name. Its common name, "sawfly", derives from the saw-like ovipositor that is used for egg-laying, in which a female makes a slit in either a stem or plant leaf to deposit the eggs. 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