Ground cover vegetation promotes biological control and yield in pear orchards

2021 ◽  
Author(s):  
Xiang‐Yun Ji ◽  
Jin‐Yan Wang ◽  
Matteo Dainese ◽  
Hao Zhang ◽  
Yi‐Juan Chen ◽  
...  
Keyword(s):  
Biological Control ◽  
Ground Cover ◽  
Ground Cover Vegetation

scholarly journals Is Ground Cover Vegetation an Effective Biological Control Enhancement Strategy against Olive Pests?

PLoS ONE ◽  
2015 ◽  
Vol 10 (2) ◽  
pp. e0117265 ◽  
Author(s):  
Daniel Paredes ◽  
Luis Cayuela ◽  
Geoff M. Gurr ◽  
Mercedes Campos
Keyword(s):  
Biological Control ◽  
Ground Cover ◽  
Ground Cover Vegetation

Monitoring rangeland ground cover vegetation using multitemporal MODIS data

2012 ◽  
Vol 7 (1) ◽  
pp. 287-298 ◽  
Author(s):  
Hassan Yeganeh ◽  
Seyed jamale Khajedein ◽  
Fazel Amiri ◽  
Abdul Rashid B. Mohamed Shariff
Keyword(s):  
Ground Cover ◽  
Modis Data ◽  
Ground Cover Vegetation

scholarly journals RELATION OF SOILS AND GROUND COVER VEGETATION IN EVEN-AGED PINE STANDS OF CENTRAL ALBERTA

1963 ◽  
Vol 39 (3) ◽  
pp. 273-278 ◽  
Author(s):  
P. K. Heringa ◽  
R. G. H. Cormack
Keyword(s):  
Ground Cover ◽  
Soil Conditions ◽  
Ground Vegetation ◽  
West Central ◽  
Pine Stands ◽  
Ground Cover Vegetation

The present paper describes the ground vegetation of even-aged pine stands in West Central Alberta on six different sites and attempts to relate the ground vegetation to soil conditions.

scholarly journals The effects of ground cover mowing height on the fauna of ground-dwelling arthropods in olive grove

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Kristijan Franin ◽  
Nikolina Kapić ◽  
Šime Marcelić ◽  
Zoran Šikić
Keyword(s):  
Biological Control ◽  
Organic Matter ◽  
Vegetation Cover ◽  
Ground Cover ◽  
Soil Surface ◽  
Soil Disturbance ◽  
Olive Grove ◽  
Experimental Site ◽  
Herbaceous Vegetation ◽  
Number Of Individuals

Ground dwelling insects, spiders, and other arthropods play an important role in agroecosystems as predators and saprophytic organisms. Their presence on the soil surface helps the biological control of pests, enhances organic matter decomposition and promotes biodiversity. Soil disturbance, particularly tilling and mowing has greatly affected the assemblage and abundance of epigeic arthropods. This study aimed to determine the effects of herbaceous vegetation cover mowing height on arthropods abundance and structure in olive orchards. The experimental site was divided into three zones (Z1, Z2, and Z3) regarding mowing heights (0 cm, 10 cm, and 15 cm ). This research was done in 2019 from the beginning of May untill the end of September. During this research, 1490 individuals were recorded belonging to 6 classes, 11 orders and 13 families. The number of individuals was higher in the zones Z2 and Z3 comparing with Z1. The highest number of individuals showed woodlices (Isopoda) comprising 67, 5% of all individuals collected. There were significant differences in the number of Carabidae, Bleteliidae and Forficulidae between the zones of research. Unlike Forficulidae, higher heights of mown positively affected the population of Carabidae and Blateliidae.  

scholarly journals Impact of ground cover vegetation types on the diversity and similarity of spider assemblage at two adjacent sites

2021 ◽  
Vol 8 (1) ◽  
pp. 060-065
Author(s):  
Mohammad Kanedi ◽  
Nismah Nukmal ◽  
Gina Dania Pratami ◽  
Hajariyah
Keyword(s):  
Land Cover ◽  
Ground Cover ◽  
Botanical Garden ◽  
Index Formula ◽  
Vegetation Types ◽  
Pitfall Trapping ◽  
Transect Line ◽  
Different Types ◽  
The Difference ◽  
Ground Cover Vegetation

Spider (Arachnida) is one of the classes of arthropods known to give strong responses to differences in land cover vegetation. This study intended to investigate whether the difference of vegetation types that are located adjacently occupied by the same genera of spiders. Two adjacent areas in Liwa Botanical Garden that covered by two different types vegetation were assigned as the sampling sites. The spiders sampling was carried out over a 100 meter long transect line (5 lines each) by applying active searching and pitfall trapping techniques. There were 21 genera from 9 spider families that were collected from two sampling sites. In the land vegetated with wood, there were 12 genera with 129 specimens. In the herbaceous land, there were 13 spider genera with 120 specimens. The Simpson's index of diversity were 0.7739 and 0.8868, meanwhile the Shannon's index were 1.8575and 2.2831, respectively obtained at herbaceous and woody land. The difference of diversity between two compared sites by Hutcheson t-test was highly significant (α < 0.01). This presumption is also supported by the coefficient of dissimilarity calculated using Sorensen’s index formula (Ss = 75.7575). Thus it can be concluded that the different types of land cover vegetation have a significant impact on the diversity of the dwelling spiders even though the two fields are located adjacent to each other.

GRASS GRUB: COPING WITHOUT CHEMICAL CONTROL

1983 ◽  
pp. 217-221
Author(s):  
R.A. French ◽  
J.F. Pearson ◽  
E.W. Vartha ◽  
T.J. Fraser
Keyword(s):  
Biological Control ◽  
White Clover ◽  
Chemical Control ◽  
Time Course ◽  
Ground Cover ◽  
Soil Conditions ◽  
Late Winter ◽  
Early Winter ◽  
Prairie Grass ◽  
Barley Crop

A field experiment lasting four years in the Carew district of mid-Canterbury, investigated the recovery of ryegrass pasture severely damaged by grass grub. Overdrilling with grasses was unsuccessful, in this instance being done too late in spring. The time course of recovery of damaged pasture without and with insecticide was compared against resowing after a barley crop with either Ruanui or Nui ryegrasses, Maru phalaris or Matua prairie grass. Recovery of ground cover from damaged pasture was through infill by weed grasses and white clover. Insecticide maintained more ryegrass herbage. Yields from renovated pasture in autumn were considerably lower than those from renewed pasture. However, the renewed pasture was again generally severely damaged by grass grub within two years. The exception was Maru phalaris which was tolerant of grass grub. Yield of herbage from Maru in autumn was however lower than from more severelydamaged Matua pasture. Successful experience elsewhere with overdrilling Nui ryegrass into grass grubdamaged pasture is mentioned when such pasture was heavily stocked under wet soil conditions in early winter, then overdrilled in late winter. Keywords: Grassgrub, pasture renovation, renewal, overdrilling, tolerant grasses, biological control

Landscape ecosystems of disturbed oak forests of southeastern Michigan, U.S.A.

1990 ◽  
Vol 20 (10) ◽  
pp. 1570-1582 ◽  
Author(s):  
Louis Archambault ◽  
Burton V. Barnes ◽  
John A. Witter
Keyword(s):  
Ground Cover ◽  
Species Group ◽  
Error Rates ◽  
Oak Forests ◽  
White Oak ◽  
Plot Sampling ◽  
Species Groups ◽  
Ecological Species Groups ◽  
Misclassification Rates ◽  
Ground Cover Vegetation

An ecological multifactor approach was used to identify and describe oak ecosystem types in highly disturbed landscapes and fragmented forests in an area of over 19 000 km2 in southeastern Michigan, United States. Eleven upland ecosystems and 1 wetland ecosystem were identified in the field using reconnaissance, plot sampling, and test mapping. Each ecosystem type was a characteristic combination of physiography, soil, and climax vegetation (overstory and ground-cover vegetation). The ecological approach emphasized physiographic and soil factors because of the disturbed state of the vegetation. Of 222 species of ground-cover vegetation, only 68 were used in forming the 13 ecological species groups. White oak (Quercusalba L.) exhibited the largest ecological amplitude of the three major oak species; it occurred on dry to mesic sites. Red oak (Q. rubra L.) occurred on dry-mesic to mesic sites, and black oak (Q. velutina Lam.) was restricted to dry sites. Discriminant analysis was used to examine the distinctness of the upland ecosystems and to compare the error rates of different ecosystem components. The misclassification rates obtained by using all ecosystem components (physiography, soil, ecological species groups, and overstory vegetation) were the lowest: 20% in highly dissected terrain and 34% in flat to gently rolling terrain. However, results obtained with physiography–soil and ecological species group variables were nearly as good as results that added the overstory vegetation. More overlap among ecosystem types and higher misclassification rates were found than in ecosystems of old-growth forests of northern Michigan and oak forests in southwestern Wisconsin where similar methods were used. Nevertheless, for the highly disturbed forests of southern Michigan, the ecological, multifactor landscape approach is a useful and effective method of identifying, describing, and mapping ecosystem types.

scholarly journals Respiration from Soil and Ground Cover Vegetation Under Tundra Shrubs

2017 ◽  
Vol 49 (4) ◽  
pp. 537-550 ◽  
Author(s):  
Le Ge ◽  
Peter M. Lafleur ◽  
Elyn R. Humphreys
Keyword(s):  
Ground Cover ◽  
Ground Cover Vegetation
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