The biology of the grape bud mite<i>Eriophyes vitis</i>(PGST.)

Kido, H.; Stafford, E. M.

doi:10.3733/hilg.v24n06p119

Cited by 16 publications

(12 citation statements)

References 7 publications

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“…The following spring it is deep inside mature over-wintered buds, inaccessible to pre-bud burst sprays. Data on Col. vitis movement in spring, and ineffectiveness of pre-bud burst lime sulphur against Col. vitis (Kido and Stafford 1955;May and Webster 1958;Dennill 1986;Hurst and Hoffmann unpublished data), support this explanation.…”

Section: Discussionsupporting

confidence: 68%

“…It is required due to clustered Col. vitis distribution, which makes random winter sampling time consuming. Differences in modes of dispersal of the two eriophyoids explain differences in damage distribution; wind dispersal, active movement in the canopy, and human contact for C. vitis (Duffner et al 2001), infested nursery stock and limited movement between buds for Col. vitis (Kido and Stafford 1955).…”

Section: Discussionmentioning

confidence: 99%

“…An explanation why woolly bud sprays against C. vitis do not control Col. vitis is provided by differences in their biology. Unlike C. vitis, Col. vitis dwells, feeds and reproduces inside next season's bud primordia, and as the season progresses, penetrates deep into developing primordia (Kido and Stafford 1955). The following spring it is deep inside mature over-wintered buds, inaccessible to pre-bud burst sprays.…”

Section: Discussionmentioning

confidence: 99%

“…In Shiraz and Cabernet Sauvignon at the same site, unburst buds and shoots in their vicinity were similarly damaged. We attribute this associated shoot injury to Col. vitis following other authors (Smith and Stafford 1948;Kido and Stafford 1955;Smith and Schuster 1963;Jeppson et al 1975;Dennill 1986Dennill , 1991. Shoot injury is due to a lower Col. vitis infestation per developing bud the previous season, than infestations causing bud-axis necrosis and burst failure.…”

Section: Experiments IV -Colomerus Vitis Surveymentioning

confidence: 93%

“…Damage inside dissected buds across the sites broadly corresponded to level of Col. vitis infestation. Typical Col. vitis damage, bud scale blistering or 'polyps' (Figure 3c), due to hypertrophy and division of epidermal cells caused by Col. vitis feeding (Kido and Stafford 1955;Smith and Schuster 1963), were found on scales of all buds with ‡50 Col. vitis per bud in 3.8-100% of buds per site, and were more severe in all buds with >100 Col. vitis per bud (Table 4). 'Polyps' were also found in some buds with no Col. vitis (Table 4).…”

Section: Experiments IV -Colomerus Vitis Surveymentioning

confidence: 97%

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Eriophyoid mite damage in Vitis vinifera (grapevine) in Australia: Calepitrimerus vitis and Colomerus vitis (Acari: Eriophyidae) as the common cause of the widespread ‘Restricted Spring Growth’ syndrome

Bernard

Horne²,

Hoffmann

2005

Exp Appl Acarol

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Leaf and shoot distortions and retarded shoot growth in Vitis vinifera L. prevalent in Australian vineyards in early spring, were investigated in replicated field experiments over 3 yrs. Leaf distortion and retarded shoot growth were identified as damage due to feeding of extremely high populations of over-wintered deutogynes of Calepitrimerus vitis (Nalepa) (grape rust mite). This damage was hitherto known in Australia as 'Restricted Spring Growth' (RSG), a syndrome comprising several growth abnormality symptoms, none with a clearly identified cause or a successful treatment. A successful treatment against C. vitis was used to selectively eliminate RSG, while C. vitis numbers were recorded using a validated trapping technique; intercepting deutogynes migrating from winter shelters in the wooden vine structure, to emerging green tissues. Severe leaf distortion was associated with > 400 C. vitis deutogynes per spur, while > 1000 per spur had the added effect of severely retarding shoot growth. A 43.0-47.2% shoot length reduction was recorded for Cabernet Sauvignon, 27.1-32.8% for Sauvignon Blanc, when 4-6 leaves were separated. Symptoms were most prominent up to 8-9 separated leaves, however 24.7-30.4% shoot length reduction was still evident at flowering, and 12.8% circa fruit set. C. vitis effect on vine fruitfulness, and yield parameters at fruit set, were also studied. Once successfully treated to prevent C. vitis damage, poor bud burst remained evident in some vineyards. Surveys of unburst buds from such vineyards revealed presence of Colomerus vitis (Pagenstecher) (grape bud mite). When Col. vitis numbers in unburst buds reached 100-500 per bud, apical meristems of primary, and commonly also secondary buds were dead, preventing bud burst. The remaining living scale tissue was distinctly scarred. Bud and associated shoot damage were documented. Retarded shoot growth and leaf distortion, previously attributed to RSG, are misdiagnosed C. vitis spring feeding damage. Clustered high infestations of Col. vitis can cause bud-axis necrosis, bud burst failure, shoots with short basal internodes, and short, thin, zigzagged shoots with absent fruit clusters; all previously considered RSG.

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Section: Discussionsupporting

confidence: 68%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%