Effect of chlorophenoxy herbicides residues on probing behavior of cereal aphid

2018 ◽  
Vol 73 (3) ◽  
pp. 29-36
Author(s):  
ROBERT KRZYŻANOWSKI ◽  
IZABELA BEDNARCZYK ◽  
JOLANTA CUDZIŁO-ABRAMCZUK
Keyword(s):  
Cereal Aphid ◽  
Probing Behavior ◽  
Chlorophenoxy Herbicides

scholarly journals Effect of chlorophenoxy herbicides residues on probing behavior of cereal aphid

2018 ◽  
Vol 73 (3) ◽  
pp. 29-36
Author(s):  
ROBERT KRZYŻANOWSKI ◽  
IZABELA BEDNARCZYK ◽  
JOLANTA CUDZIŁO-ABRAMCZUK
Keyword(s):  
Rhopalosiphum Padi ◽  
Inhibitory Effect ◽  
Cereal Aphids ◽  
Cereal Aphid ◽  
Metopolophium Dirhodum ◽  
Wheat Seedlings ◽  
Positive Side ◽  
Probing Behavior ◽  
Grain Aphid ◽  
2,4 Dichlorophenoxyacetic Acid

Chlorophenoxyacetic herbicides such as 4-chloro-2-methylphenoxyacetic acid (MCPA) and 2,4-dichlorophenoxyacetic acid (2,4-D) are used for cereal protection. However, some of them penetrate the tissues of protected plants and also get in contact with cereal pathogens. The up-to-date studies concerned their effectiveness in combating the weeds without paying attention to the herbivores occurring in cereal agrocenoses. Therefore, the aim of the present study was to determine the effect of chlorophenoxyacetic herbicides on the probing behavior of grain aphid, Sitobion avenae (F.), bird cherry-oat aphid, Rhopalosiphum padi (L.) and rose-grain aphid, Metopolophium dirhodum (Walk.). The experiment was carried out on wingless females feeding on winter wheat seedlings of Tonacja cv. using the electronic penetration graph (EPG) method. Tested herbicide preparations exerted an influence on the probing behavior of all aphids examined. The inhibitory effect of MCPA and 2,4-D on the uptake of phloem juice was found. It has been shown that chlorophenoxyacetic herbicides are not only effective in combating the weeds of cereal crops, but can also have positive side-effects in the form of limiting the cereal aphids population.

EFFECT OF NITROGEN FERTILIZER DOSE AND ROW SPACING ON AMARANTH PRODUCTIVITY

2019 ◽  
Keyword(s):  
Animal Husbandry ◽  
Dry Weight ◽  
Nitrogen Fertilizers ◽  
Row Spacing ◽  
Cereal Aphid ◽  
Perennial Weeds ◽  
Food And Feed ◽  
Leaf Surface Area ◽  
Cultivation Technology ◽  
Photosynthetic Potential

Amaranth is a valuable food and feed crop that can solve the problem of vegetable protein in animal husbandry. The aim of the research was to study elements of amaranth cultivation technology: the dose of nitrogen fertilizers (without fertilizers, N15, N20, N25) and the row spacing (15, 30, 45 cm). The work was carried out on sod-podzolic medium loamy gleyic soil on the experimental field of FSBEI HE Yaroslavl State Agricultural Academy in 2018. The studied parameters were determined according to generally ac-cepted methods. The use of nitrogen fertilizers contributed to a significant increase in leaf area and pho-tosynthetic potential of amaranth crops at the highest values of the background N20 – 4.7 thousand m2 / ha and 324.08 thousand m2 / ha × days, respectively. Increase in row spacing when sowing amaranth raised the leaf surface area value, accumulation of dry aboveground mass, photosynthetic potential, ger-mination and safety at maximum values in the variant with a row spacing of 45 cm. abundance of weed flea, cereal aphid and sunflower fire. Sowing amaranth with a width of 45 cm between rows caused a sta-tistically significant decrease in the number of studied pests, as well as the number and dry weight of young and perennial weeds. The use of nitrogen fertilizers in a dose of 25 kg AI / ha contributed to a sig-nificant decrease in the yield of amaranth green mass from 145.12 q / ha on the «no-fertilizer» variant to 127.93 q / ha, with maximum values for the background N20 – 156, 55 kg / ha. Thus, the greatest effi- 128 ciency was shown by the introduction of nitrogen fertilizers at a dose of 20 kg ai / ha when sown with a row spacing of 45 cm.

scholarly journals UV reflective properties of magnesium oxide increase attraction and probing behavior of Asian citrus psyllids (Hemiptera: Liviidae)

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Justin George ◽  
Thomson M. Paris ◽  
Sandra A. Allan ◽  
Stephen L. Lapointe ◽  
Lukasz L. Stelinski
Keyword(s):  
Magnesium Oxide ◽  
Probing Behavior

scholarly journals Relationships Among the Feeding Behaviors of a Mirid Bug on Cotton Leaves of Different Ages and Plant Biochemical Substances

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Haiyan Song ◽  
Zhaoke Dong ◽  
Lili Li ◽  
Zengbin Lu ◽  
Chao Li ◽  
...  
Keyword(s):  
Negative Impact ◽  
Leaf Age ◽  
Leaf Traits ◽  
Cotton Leaf ◽  
Young Plant ◽  
Feeding Behaviors ◽  
Probing Behavior ◽  
Negative Effect ◽  
Mirid Bug ◽  
The Relationship

Abstract Apolygus lucorum (Meyer-Dür) (Hemiptera: Miridae) tends to feed on young plant tissues. To explore the relationship between stylet probing behaviors of adult A. lucorum and conditions of cotton leaves, we conducted an experiment using electropenetrography (EPG). Behaviors were recorded on four cotton varieties, in relation to thickness and biochemical traits of differently-aged leaves. Cotton leaf age had a significant effect on the probing behavior of A. lucorum but cotton variety did not. One-day-old leaves of A. lucorum received the highest mean number of stylet probes (penetrations) per insect, and longest mean durations per insect of combined stylet probing or its components, cell rupture and ingestion behaviors. All of the leaf traits (thickness and biochemical substances) were similar among these four cotton varieties. Leaf thickness had a significantly negative effect on the same four variables above. Gossypol and tannin also had a negative impact on combined probing duration. Redundancy analysis showed that the four EPG variables were closely related to nutrient substances (amino acids, sugar, and water) while they had the opposite relationship with plant defense substances (gossypol and tannin). On cotton in the seedling stages, A. lucorum fed more readily on the youngest, thinnest leaves in our no-choice EPG experiments. Nutrients and chemical resistance substances determined the probing duration of A. lucorum. Our findings can contribute to better understanding of patterns of feeding and host consumption by A. lucorum, ultimately improving cotton resistance to A. lucorum.

Diversity of cereal aphid parasitoids in simple and complex landscapes

2008 ◽  
Vol 126 (3-4) ◽  
pp. 289-292 ◽  
Author(s):  
Ines M.G. Vollhardt ◽  
Teja Tscharntke ◽  
Felix L. Wäckers ◽  
Felix J.J.A. Bianchi ◽  
Carsten Thies
Keyword(s):  
Cereal Aphid ◽  
Aphid Parasitoids ◽  
Complex Landscapes

The Influence of Chlorophenoxy Herbicides MCPA on Creeping Bentgrass Physiological Index

2011 ◽  
Vol 356-360 ◽  
pp. 2763-2766 ◽  
Author(s):  
Yang Fan Gao ◽  
Ming Wang Shi ◽  
Jian Hua Wang
Keyword(s):  
Chlorophyll Content ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Creeping Bentgrass ◽  
Physiological Index ◽  
Soluble Sugar Content ◽  
Content Determination ◽  
Chlorophenoxy Herbicides ◽  
Test Result

In this article, we studied to different concentrations of MCPA to creeping bentgrass Growth. Through the creeping bentgrass in four different periods of chlorophyll content, MDA and soluble sugar content determination. This test result showed:With the MCPA concentration increases, creeping bentgrass decline of chlorophyll content in the same period of growth, MDA and soluble sugar content increased. MCPA used after the early pair of creeping bentgrass growth is large, to put off with MCPA handle time, to affect to creeping bentgrass growth is gradually decreased.

Cereal Aphid Capture in Yellow Baffle Trays1

1962 ◽  
Vol 55 (3) ◽  
pp. 407-408 ◽  
Author(s):  
B. F. Coon ◽  
H. B. Rinick
Keyword(s):  
Cereal Aphid
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