scholarly journals The sunflower moth, Homoeosoma nebulella (Denis et Schiffermüller ) (Lepidoptera: Pyralidae): outbreaks and pest management in Linhe, Inner Mongolia 2007–2008

2019 ◽  
Vol 21 (2) ◽  
pp. 65-69 ◽  
Author(s):  
Ling Cao ◽  
Xiao Liu ◽  
Qing Zhang
Keyword(s):  
Pest Management ◽  
Inner Mongolia ◽  
Control Measure ◽  
Sowing Date ◽  
Autonomous Region ◽  
Potential Control ◽  
Pheromone Trapping ◽  
Large Outbreak ◽  
Lepidoptera Pyralidae ◽  
Sunflower Moth

Sunflowermoth Homoeosoma nebulella is the most common pest of sunflowers (Helianthus annuus L.) in China. A large outbreak involving H. nebulella was discovered in Linhe of the Mongolia Autonomous Region in 2007. Different issues related to pest management were investigated in 2007–2008. Irrigation for overwintering could promote pest outbreak in the following year. It is the safest practice to sow from mid-May to mid-June, i.e. not too early. The quantity of larvae could be reduced by the treatment with Bacillus thuringiensis. The effective pest management should include selecting proper sowing date, non-irrigation and B. thuringiensis treatment. Sex pheromone trapping as a potential control measure requires further studies.

scholarly journals Sunflower Moth (Lepidoptera: Pyralidae) Biology, Ecology, and Management

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Tom A Royer ◽  
Janet J Knodel
Keyword(s):  
Pest Management ◽  
Chemical Control ◽  
Insect Pest ◽  
Management Strategies ◽  
Cultural Control ◽  
Pheromone Trapping ◽  
Economic Thresholds ◽  
Lepidoptera Pyralidae ◽  
Sunflower Moth ◽  
Homoeosoma Electellum

Abstract Sunflower moth, Homoeosoma electellum (Hulst) is an important insect pest of cultivated sunflower in North America. In this review, we outline sunflower moth life history and biology and describe direct and indirect crop injury to cultivated sunflower. Pest management strategies for sunflower moth are discussed including proper field scouting, pheromone trapping, use of economic thresholds and biological control, cultural control, host plant resistance and chemical control for incorporation into an integrated pest management (IPM) program.

scholarly journals Genetic variability and structure of populations of Homoeosoma nebulella (Denis et Schiffermüller) (Lepidoptera: Pyralidae) in northern China

2019 ◽  
Vol 23 (3) ◽  
pp. 121-126 ◽  
Author(s):  
Ling Cao ◽  
Ju Yu ◽  
Ren Qin ◽  
Qing Zhang
Keyword(s):  
Genetic Structure ◽  
Inner Mongolia ◽  
Northern China ◽  
Control Measures ◽  
Heilongjiang Province ◽  
Autonomous Region ◽  
Lepidoptera Pyralidae ◽  
Xinjiang Uyghur Autonomous Region ◽  
Sunflower Moth ◽  
Local Farmers

In recent years, there have been significant outbreaks of the European sunflower moth (ESM) Homoeosoma nebulella in northern China, causing enormous agricultural losses to local farmers. Although some control measures have been investigated, there is limited knowledge about genetic structure among ESM populations which may be related to pest outbreak. In this study, we analyzed the genetic variation and genetic structure of ESM. Our results showed that genetic differentiation was low among populations (2.73%), while it was high within individuals (60.73%), and among individuals within populations (32.59%). Dendograms based on Fst and genetic distance revealed that populations from Inner Mongolia and Xinjiang Uyghur Autonomous Region were first clustered and subsequently grouped with populations from Heilongjiang province. The outbreaks of ESM in Inner Mongolia may be caused by dispersal of ESM from Xinjiang Uyghur Autonomous Region.

scholarly journals Capitate Glandular Trichomes Fail to Provide Significant Resistance to Banded Sunflower Moth (Lepidoptera: Tortricidae)

2020 ◽  
Vol 49 (2) ◽  
pp. 444-448
Author(s):  
Jarrad R Prasifka ◽  
Brent S Hulke
Keyword(s):  
Insect Pest ◽  
Glandular Trichomes ◽  
Field Trials ◽  
Similar Species ◽  
Seed Damage ◽  
Negative Results ◽  
Pheromone Trapping ◽  
Lepidoptera Pyralidae ◽  
Plant Maturity ◽  
Sunflower Moth

Abstract Extracts from capitate glandular trichomes (CGT) of wild and cultivated sunflowers, Helianthus spp., have repellent or toxic effects on sunflower specialists and generalist herbivores less closely associated with sunflower. Though CGT have been primarily examined for their potential to provide partial resistance to the sunflower moth, Homoeosoma electellum Hulst (Lepidoptera: Pyralidae), a floret- and seed-feeding pest, the banded sunflower moth (Cochylis hospes Walsingham [Lepidoptera: Tortricidae]) is a similar species more common in the primary sunflower-producing states of North Dakota and South Dakota. Replicated field trials using partially inbred lines with low or high CGT densities were used to evaluate possible reductions to seed damage by C. hospes larvae in 2016–2017. Results failed to support the idea that CGT are a useful defense against larvae of C. hospes; the putative plant defense of high trichome density corresponded to slightly more, rather than less, insect damage. A test of a secondary explanation, that strength of sunflower hulls could help determine patterns of seed damage among tested lines, produced similarly negative results. Though timing of bloom differed between groups of most- and least-damaged lines, prior research and pheromone-trapping data suggest differences in plant maturity also cannot adequately explain the observed results. While the specific mechanisms remain unclear, significant differences in susceptibility to C. hospes exist for cultivated sunflower and limit losses from this primary insect pest.

scholarly journals Impacts of climate change on growth period and planting boundaries of winter wheat in China under RCP4.5 scenario

2015 ◽  
Vol 6 (2) ◽  
pp. 2181-2210 ◽  
Author(s):  
Z. Sun ◽  
S. F. Jia ◽  
A. F. Lv ◽  
K. J. Yang ◽  
J. Svensson ◽  
...  
Keyword(s):  
Climate Change ◽  
Winter Wheat ◽  
Inner Mongolia ◽  
Growth Period ◽  
Sowing Date ◽  
Multiple Regression Model ◽  
Autonomous Region ◽  
The North ◽  
Ex Post ◽  
Impacts Of Climate Change

Abstract. This paper advances understanding of the impacts of climate change on crops in China by moving from ex-post analysis to forecasting, and by demonstrating how the effects of climate change will affect the growth period and the planting boundaries of winter wheat. Using a multiple regression model based on agricultural meteorological observations and the IPCC AR5 GCMs simulations, we find that the sowing date of winter wheat in the base period, 2040s and 2070s, shows a gradually delayed trend from north to south and the growth period of winter wheat in China will be shortened under climate change. The simulation results also show that (i) the north planting boundaries of winter wheat in China will likely move northward and expand westward in the future, while the south planting boundary will rise and spread in south Hainan and Taiwan; and (ii) the Xinjiang Uygur Autonomous Region and the Inner Mongolia Autonomous Region will have the largest increases in planting areas in 2040s and 2070s. Our simulation implies that Xinjiang and Inner Mongolia are more sensitive to climate change than other regions in China and priority should be given to design adaptation strategies for winter wheat planting for these provinces.

Report on energy strategies for Inner Mongolia Autonomous Region

2010 ◽  
Vol 18 (1) ◽  
pp. 3-10 ◽  
Author(s):  
Woodrow W. Clark ◽  
William Isherwood
Keyword(s):  
Inner Mongolia ◽  
Autonomous Region ◽  
Inner Mongolia Autonomous Region ◽  
Energy Strategies
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