Laboratory studies were conducted to develop ultralow oxygen (ULO) treatment for controlling western flower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), on broccoli at a low temperature of 1 degree C. Complete control was achieved in 5 d at 0.003% oxygen. Oxygen level affected efficacy of ULO treatment. At a higher oxygen level of 0.03%, 6-d treatment killed -85% of ...

J. Econ. Entomo!. 75: 492-494·(1982) Studies conducted to determine Thrips tabaci Lindeman damage and contamination in sauerkraut revealed that both occur at detectable levelsin processedcabbage, althoughsuch levelsare much lower than predicted from examination of fresh cabbage. Addition of the chemical preservativessodium benzoate (0.1%) and potassiummetabisulfite (0.05%) had no effect on plan...

c f This paper presents the results of tests to determine the host range of Sericothrips staphylinus Haliday (Thysanoptera: Thripidae), an agent selected for control of Ulex europaeus (Fabaceae). It also describes the biology of the thrips and its release and establishment in New Zealand and Hawaii. Eighty-three plant species were tested. Research was conducted in several institutions by use of...

Feeding by the western flower thrips, Frankliniella occidentalis (Pergande), causes damage to the fruits of vegetables, and the species is the key vector of Tomato spotted wilt virus . Frankliniella tritici (Fitch) and Frankliniella bispinosa (Morgan) are not pests of fruiting vegetables. Both species compete with F. occidentalis . Effective management of F. occidentalis in pepper integrates co...

The impact of water-soluble carbohydrate composition in relation to damage levels of onion thrips (Thrips tabaci Lindeman), were studied under field conditions at the Experimental Field of the Biotechnical Faculty in Ljubljana on 7 cabbage cultivar (Brassica oleracea L. var. capitata). Onion thrips showed weak preference on cabbage heads with high amount of total carbohydrate, fructose and gluc...

U.S. exported lettuce, broccoli, asparagus, and strawberries oftenharborwesternßower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), a quarantined pest in Taiwan, and therefore require quarantine treatment. Fumigation with diluted pure phosphine at a low temperatureof 2 Cwas studied to controlwesternßower thrips and todetermineeffects on thequality of the treated produc...

Identifying locations where onion thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae), overwinter and subsequently disperse is important for designing control strategies. In upstate New York from 2003 through 2006, potential overwintering sites in the commercial onion, Allium cepa L., cropping system were investigated early in the spring before onion seedling emergence and again late in th...

The characteristics of a thrips-non-transmissible isolate of Tomato spotted wilt virus (TSWV), designated TSWV-M, were compared with those of a thrips-transmissible isolate, designated TSWV-T. TSWV-M showed a narrower host range than TSWV-T. Adult thrips failed to transmit TSWV-M, although the vector acquired the virus during the larval stages. TSWV-M was detected by RT-PCR in adult thrips bodi...

Thrips are major crop pests and virus vectors in many parts of the world. Despite their economic importance, thrips diversity in Pakistan is not well documented. Surveys were carried out from year 2009 to 2012 to decipher thrips fauna in Pakistan. A total of 158 sites in three climatic regions were surveyed, and specimens were collected from a wide range of flora. Following taxonomic keys, we i...