Search Results

You are looking at 1 - 9 of 9 items for :

Clear All

when the insect population is high ( Nakhla and Maxwell, 1998 ). As of 2020, four whitefly-transmitted viruses have been detected in Cucurbits in Georgia and Florida: CuLCrV, CYSDV, Squash vein yellowing virus (SqVYV), and Cucurbit chlorotic yellows

Open Access

( Cohen et al., 1983 ), but SLCV was recently detected with polymerase chain reaction (PCR) using SLCV-specific primers in commercial melon plants in Imperial Valley (R.L. Gilbertson, pers. comm.). Cucurbit leaf crumple virus (CuLCrV) ( Guzman et al., 2000

Free access

disperse easily across crops. Consequently, vegetable growers have been challenged with sweetpotato whitefly-transmitted viruses, particularly the cucurbit leaf crumple virus (CuLCrV), which has caused significant yield losses of yellow squash and zucchini

Open Access

Cucurbit leaf crumple geminivirus (CuLCrV) is transmitted by sweet-potato whitefly (Bemisia tabaci) biotype B (SPWF-B) and occurs on cucurbits in Arizona, California, Texas, and Mexico. This virus is identical to Cucurbit leaf curl virus, and their symptoms are similar to Squash leaf curl virus on squash (Cucurbita sp.) and Melonleaf curl virus on melon (Cucumis melo L.). Melon has been reported to be either susceptible to CuLCrV, or to have the ability to recover from infection. Twenty-three melon cultigens were inoculated with CuLCrV in greenhouse tests using SPWF-B. Eighteen of the cultigens tested were highly susceptible to CuLCrV (≥60% infected plants) and generally exhibited pronounced CuLCrV symptoms: `Amarillo', `Edisto 47', `Esteem', `Fuyu 3', `Impac', `Moscatel Grande', `Negro', `Perlita', PI 234607, PI 236355, PI 414723, `PMR 5', `Seminole', `Sol Dorado', `Sol Real', `Top Mark', `Vedrantais', and WMR 29. Five cultigens were resistant to CuLCrV (<40% infected plants that exhibited restricted, mild symptoms): MR-1, PI 124111, PI 124112, PI 179901, and PI 313970. Symptoms abated with time in both groups although infected plants remained positive for the virus. Ten of the cultigens (`Edisto 47', `Fuyu 3', `Impac', MR-1, PI 124112, PI 313970, PI 414723, `PMR 5', `Top Mark', and WMR 29) were included in field tests in 2003 and 2004 that were naturally infected with CuLCrV. With the exception of PI 414723, the greenhouse and field data were consistent for reaction to CuLCrV.

Free access

leaf crumple virus (CuLCrV; Geminiviridae, Begomovirus ) in the fall ( Guzman et al., 2000 ) and Podosphaera xanthii (Castagne) Braun & Shishkoff, a causal agent of melon powdery mildew ( McCreight, 2006 ) in the spring and fall. Observation of

Free access
Author:

). In some years, silverleaf whitefly ( Bemisia tabaci ) transmitted begomoviruses, such as Cucurbit leaf crumple virus (CuLCrV), can be problematic in Georgia and north Florida ( Webb et al., 2013 ). First identified in the Imperial Valley of

Full access

the detection of two additional whitefly-transmitted viruses. Cucurbit leaf crumple virus (CuLCrV) was found in squash in north-central Florida in the fall of 2006 and in watermelon in southwest Florida in Spring 2007. Cucurbit yellow stunting

Free access

, Podosphaera xanthii races 1, 2, 2U.S., 3, 3.5, 4.5, 5, and S ( McCreight, 2003 ; McCreight and Coffey, 2011 ; Pitrat and Besombes, 2008 ; Shishkoff, 2000 ), Cucurbit leaf crumple virus (CuLCrV) ( McCreight et al., 2008 ), as well as other insect pests

Open Access

, Cucurbit leaf crumple virus (CuLCrV) and Cucurbit yellow stunting disorder virus (CYSDV), also whitefly-transmitted, have been found in Florida watermelon. Cucurbit weeds including Balsam-apple ( Momordica charantia ), creeping cucumber ( Melothria

Free access