Abstract
The effects of soil moisture and temperature on the reproduction of twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), were examined in laboratory and field tests in strawberries, Fragaria x ananassa Duchesne, in Florida. Different soil moisture levels (low, moderate, and high) were compared to determine how soil moisture affects the reproduction and development of twospotted spider mite. In addition to soil moisture, different irrigation techniques (drip versus drip/overhead) were compared to determine their effects on twospotted spider mite reproduction as well as the incidence of angular leaf spot, Xanthomonas fragaria Kennedy & King disease. Similar studies were conducted to determine how different temperatures (18, 27, and 35 degrees C) affect the reproduction and development of twospotted spider mites. In the laboratory, low soil moisture as well as temperatures >27 degrees C promoted twospotted spider mite development. A similar trend was observed in a field study with low soil moisture promoting twospotted spider mite reproduction during the early season (11 November--8 December). Irrespective of moisture levels, a significantly higher incidence of X. fragaria was recorded in treatments with drip/overhead irrigation systems compared with drip irrigation. Implications for management of soil moisture levels are discussed with respect to the abundance of twospotted spider mite and X. fragaria in strawberries.
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Claims 4
Claim · model-written summary
Low soil moisture promoted twospotted spider mite development in laboratory strawberries.
- Taxon
- strawberries
_single2.jpg?width=60)
Fragaria ×ananassae1 - Treatment
- low soil moisturee0
- Interactor
- twospotted spider mitee0pest
- Outcome
- twospotted spider mite developmente0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“In the laboratory, low soil moisture as well as temperatures >27 degrees C promoted twospotted spider mite development”
e1“strawberries, Fragaria x ananassa Duchesne”
e2“twospotted spider mite, Tetranychus urticae Koch”
Claim · model-written summary
Temperatures above 27 degrees C promoted twospotted spider mite development in laboratory strawberries.
- Taxon
- strawberriesFragaria ×ananassae1
- Treatment
- temperatures >27 degrees Ce0
- Interactor
- twospotted spider mitee0pest
- Outcome
- twospotted spider mite developmente0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“temperatures >27 degrees C promoted twospotted spider mite development”
e1“strawberries, Fragaria x ananassa Duchesne”
Claim · model-written summary
Low soil moisture promoted twospotted spider mite reproduction in the field early in the season.
- Taxon
- strawberriesFragaria ×ananassae1
- Treatment
- low soil moisturee0
- Interactor
- twospotted spider mitee0pest
- Outcome
- twospotted spider mite reproductione0
- Direction
- promotinge0
- Qualifier
- early season (11 November--8 December)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“low soil moisture promoting twospotted spider mite reproduction during the early season (11 November--8 December)”
e1“strawberries, Fragaria x ananassa Duchesne”
Claim · model-written summary
Drip/overhead irrigation had higher angular leaf spot incidence than drip irrigation regardless of moisture level.
- Taxon
- strawberriesFragaria ×ananassae1
- Treatment
- drip/overhead irrigation systemse0
- Interactor
- X. fragariae0pathogen
- Outcome
- incidence of X. fragariae0
- Direction
- highere0
- Qualifier
- Irrespective of moisture levelse0
- Comparator
- drip irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrespective of moisture levels, a significantly higher incidence of X. fragaria was recorded in treatments with drip/overhead irrigation systems compared with drip irrigation”
e1“strawberries, Fragaria x ananassa Duchesne”
The same questions in other papers
irrigation · disease · Fragaria x ananassa (strawberry)Positive and negative results
4 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →soil water · growth · Fragaria x ananassa (strawberry)Results agree
1 paper in the same direction as this paper
- no effect
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.