Thrips palmi is a major pest. T. palmi is polyphagous and is known to feed on tomato, potato, hot pepper, watermelon, muskmelon, bottle gourd, ⦠Damage in plants due to thrips infestations was documented. Environmental Entomology 24: 1598-1603. ⢠Melon thrips have developed resistance to organophosphate (several products; 1B) and pyrethroid (numerous products; 3) insecticides. Thrips palmi-specific Damage by T. palmi is not unlike that caused by many other species of thrips; when populations are high, their feeding causes a silvery or bronzed appearance on the surface of the plant, especially on the midrib and veins of leaves and on the surface of fruit. Srinivasan Ramasamy, Manickam Ravishankar, in Sustainable Management of Arthropod Pests of Tomato, 2018. The period from egg laying to adult emergence is 10 to 12 days at 30°C, and 14 to 16 days at 25°C. Identification of Thrips palmi by multiplex PCR For identification of T. palmi, a multiplex PCR meth-od based on a combination of one T. palmi-specific primer pair Tpal2F/Tpal2R (Yeh et al. The durations of the egg, first instar larva, pupa, and total immature stages of T. palmi reared ⦠brinjal, cowpea, cotton, cucumber, sweet pepper, and tobacco on ⦠Thrips palmi Karny is widely distributed in South and Southeast Asia and Oceania. Abstract. agrochemical regions of the country. Host plants: About 120 plants are attacked by this pest, including vegetables such as cucurbits, legumes and solanaceous crops, field crops like cotton and sunflower, and even fruit trees, including avocado, citrus and mango. This paper presents a list of 72 thrips species in 45 genera recorded during the survey from 324 host plant species in 83 plant families. Host plants Many of the species described above are polyphagous, feeding on a variety of unrelated plants. Impact. ⢠Thrips palmi is almost entirely yellow in coloration; bears similarity to certain other yellow or predominantly yellow species of Thrips Populations increase rapidly causing severe injury. ⢠The thrips may be carried on plants for planting, cut flowers and fruits of host species, as well as on packing material. Effects of host plant and temperature on growth and reproduction of Thrips palmi (Thysanoptera: Thripidae). Little is known about the host-mediated alteration in biological traits of T. palmi.The present study reports the effect of different hosts viz. Symptoms. Megalurothrips usitatus, Thrips palmi, and Haplothrips gowdeyi were the most widely distributed species. Flower thrips, chilli thrips, and red-banded thrips are reported from hundreds of plants including trees, ornamentals and vegetable crops, field crops, and weeds. After emergence from the pupae the adults burrow to the soil surface and then climb or fly to host plants. Behavior, body appearance, and host plants help to distinguish among thrips species (Table 1). https://efsa.onlinelibrary.wiley.com/doi/full/10.2903/j.efsa.2019.5620 In addition, the melon thrips ⦠The adults live for 30-90 days. 2.2 Thrips Thrips palmi Karny and Scirtothrips dorsalis Hood. 2003) was used (Table 2). more than 36 plant families. For example, three dark spots on each forewing distinguish the adult predaceous sixspotted thrips from pest thrips. 2015) and one insect-universal primer pair 28Sg/28Sh (Lin et al. In order to contrast the fitness of Thrips palmi Karny reared on two of its hosts plants, Brassica oleracea L. leaves and Phaseolus vulgaris L. beans, life tables were constructed for T. palmi individuals reared on the two hostplants at 25°C using the ageâstage, two-sex life table. Thrips palmi, an important pest of vegetables and ornamentals, transmits several tospoviruses.Effect of tospovirus on host plant and vector is well studied.
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