This study investigated the Texture Profile Analysis and Sensory characteristics analysis of 6 different Pork Meat-substituted Soybean Curd (PMSC) products with different gluten-fiber (GF) contentst. PMSC types were PMSC-GF 5%, PMSC-GF 10%, PMSC-GF 15%, PMSC-GF 20%, PMSC-GF 25%, and PMSC-GF 30%. The lightness (ΔL value) of cooked PMSC was decreased, whereas the redness (Δa value) and yellowness (Δb value) of cooked PMSC was not changed. Texturometer (TA XT Plus, England) was used for objective test and hardness, springiness, cohesiveness and chewiness of sensory characteristics were measured. PMSC with GF 5% to 15% were characterized high hardness score but PMSC with GF 20% to 30% were not significantly different. PMSC-GF 30% was the highest score in springiness and PMSC-GF 5% was the lowest. PMSC-GF 25% and 30% were high cohesiveness score but was not significantly different (p<0.05). Fourteen sensory descriptors were developed to evaluate the sensory characteristics of PMSC. The sensory characteristics of PMSC were sweetness, saltiness, springiness, hardness, chewiness, meat flavor, odor, loose particle and so on. Six different PMSC showed no significant difference in the attributes of loose particle. But PMSC-GF 5% and PMSC-GF 10% showed significant difference in the attributes of hardness. PMSC-GF 25% and PMSC-GF 30% showed no significant difference in the attributes of hardness. PMSC-GF 30% was the highest springiness score and PMSC-GF 5%, PMSC-GF 10% and PMSC-GF 15% showed no significant difference in the attributes of springiness. Overall consumer acceptance was surveyed. PMSC-GF 5%, PMSC-GF 10% and PMSC-GF 15% showed no significant difference in the attributes of color. PMSC-GF 25% and PMSC-GF 30% was the highest in the attributes of springiness and high moistureness, taste acceptance and overall acceptance. PMSC-GF 5%, PMSC-GF 10% and PMSC-GF 15% showed no significant difference in overall consumer preference but PMSC-GF 25% and PMSCGF 30% showed significant difference. Consequently it is indicated that texture of cooked PMSC-GF 25% and PMSC-GF 30% is very important sensory characteristics.

A large number of transgenic crop varieties expressing the Bt (Bacillus thuringiensis) insecticidal proteins have been commercialized in 13 countries since 1996. Although the use of these insect-resistant Bt crops can increase crop quality and yields, concerns remain about the potential negative effects of such crops on ecosystems. Transgenic soybean containing cry1Ac gene have been developed to control Lepidopteran pests of soybean and we aimed to investigate whether this soybean could affect non-target arthropods, which play a major role in ecological functions in agricultural ecosystems. In the present study, we first measured the levels of Cry1Ac protein in Bt soybean at different growth stages of soybean and then we compared the community structure of arthropods occurred in fields of transgenic and wild-type soybean. The levels of Cry1Ac protein in transgenic soybean leaves ranged from 252.9 to 604.5 μg g-1 DW. Multivariate analyses (PerMANOVA and NMDS) showed that the composition of the non-target arthropod community was affected by sampling date but not by soybean genotype. These results suggest that transgenic soybean expressing Cry1Ac protein may not adversely affect such non-target arthropod communities.

The soybean aphid, Aphis glycines Matsumura, was introduced about a decade ago from Asia into North America where it has become a serious pest of soybeans. This invasive pest has rapidly spread throughout the midwestern United States and southern Canada since 2000. We examined 689 individuals obtained from 23 different collections in USA, Korea, China and Japan for testing eight microsatellite loci. To estimate the relative likelihood of alternative introduction scenarios of the soybean aphid, an approximate Bayesian computation (ABC) was performed for microsatellite data as implemented in DIYABC. The ABC analysis tested for three scenarios (B1, B2, and B3) hypothesizing an introduction from one of the Asian countries. In this analysis, scenario B1 obtained the highest posterior probability ranging from 0.90 to 0.91 with a 95% CI of 0.81-0.99 and 0.88-0.94, which assumes an introduction from Korea. The ABC analysis revealed that one hypothetical scenario, which assumes an introduction of the soybean aphid into USA from Korea, was very robustly suggested than the other two scenarios (from China or Japan).

Expression of hairpin RNA corresponding to the part of COPA transcript was done by agroinfiltration in soybean plants and was confirmed by qRT-PCR. In a pot experiment, T. urticae was infested on agroinfiltrated soybean plants and T. urticae mortality was observed and compared with control plants overtime. Significantly higher mortalities of T. urticae were observed in the COPA-agroinfiltrated soybean plants from post-infestation day 2 (15 ±5%), day 4 (50 ±10 %). At post-infestation day 6, mortality reached to (70 ± 15%). To validate the observed COPA silencing effect in T. urticae fed on the agroinfiltrated soybean plant expressing COPA hairpin RNAs, qRT-PCR analysis was performed. The transcript level of COPA gene was decreased in T. urticae fed on agroinfiltrated soybean plants expressing COPA hairpin RNA from post-infestation day 2. At post-infestation day 2, 4 and 6, COPA transcript levels were reduced by 23.8, 20.7 and 18.8 fold, respectively compared to post-infestation day 1 (control). The results obtained in this study also ruled that the plant mediated production and uptake of silencing (dsRNAs/siRNAs) is an effective way to trigger RNAi in the T. urticae.

Information on spatial distribution and peak occurrence is important for site and time specific pest management. So, we investigated seasonal occurrence and edge distribution of major soybean pests by visual count in six commercial fields located in Andong from July 16 to October 23 in 2015. We found a total of 19 species in 10 families. The major pest during vegetative stage was Medythia nigrobilineata (Motschulsky) while Riptortus pedestris (Fabricius) and Halyomorpha halys (Stal) showed peak occurrence during reproductive stage of soybean. Aphis glycines Matsumura was found throughout the season. Seasonal density of M. nigrobilineata was 0.20 and 0.38/plant in edge and interior without significance, respectively. The infestation of A. glycine was also found similar between edge and interior. Immatures of R. pedestris and H. halys distributed more in edge (0.21 and 0.36/plant) than interior (0.12 and 0.12/plant), respectively. The application of these informations on spatial distribution pattern of soybean pest was discussed.

A mycoinsecticide, Beauveria bassiana (strain GHA) marketed as BotaniGard® ES, was evaluated as a biological control agent against Riptortus pedestris (Fabricius) (Hemiptera: Alydidae) a major soybean pest. It was tested on commercial soybean fields with one time spray of both high (1×109) and medium (1×108spore/ml) concentration and double spray of the medium concentration. Nymph population decreased in all treated fields regardless of dose and frequency of spray. But, adult and egg populations were not affected. Alive nymphs collected from the fields and kept in laboratory showed infection rate ranging 35-68% in treated plots while 0% in control plots. It also reduced damage on soybean pods and seeds by 17.7-21.2 and 18.0-22.5% compare to control, respectively. Additionally, B. bassiana reduced other pests found in soybean fields including brown marmorated stink bug Halyomorpha halys (Stål) and two striped leaf beetle Medythia nigrobilineata Motschulsky. Also there was no negative effect on the parasitism of released non-viable eggs of R. pedestris. These results suggest that, in field condition, one time spraying of B. bassiana in the concentration of 1×108spore/ml can help reducing crop damage as well as R. pedestris nymph population.

콩에서 사용할 수 있는 친환경 살충제 14종을 문헌 조사를 통해 선발한 후 상용화된 천적인 칠레이리응애와 미끌애꽃노린재 에 대한 생태독성을 비교하였다. 천적에 대한 영향이 가장 적어 천적 사용과 호환이 가능한 살충제는 flonicamid와 spirotetramat, Bacillus thuringiensis kurstaki, Beauveria bassiana strain GHA (Bb GHA), spinosad 등이었다. 이 들 중 flonicamid와 spirotetramat, Bb GHA를 콩의 주요 해충인 톱다리개미허리노린재[Riptortus pedestris (Fabricius)]와 그 들의 알 포식기생자인 노린재검정알벌 [Gryon japonicum (Ashmead)]과 노린재깡충좀벌(Ooencyrtus nezarae Ishii)에 대해 생태독성을 추가적으로 비교하였다. flonicamid와 spirotetramat 모두 톱다리개미허리노린재의 약충에 대한 독성이 톱다리개미허리노린재의 성충에 비해 높았으며, 상대적으로 두 종의 기생벌에 대해서는 영향이 적었다. 반면 Bb GHA는 살충률과 감염률 모두 노린재에 비해 천적에서 높게 나타났다. 이상의 결과를 바탕으로 콩에서 천적중심 해충 방제 전략에 대해 고찰하였다.

The objective of this study was to investigate the immunomodulatory effects mixed with Weissella cibaria JW15 strain and black soybean (Glycine max (L.) Merr.). In this experiment, JW15 was cultured in De Man Rogosa and Sharpe (MRS) broth at 37% for 17 hr, and the cells were washed twice with sterile phosphate buffered saline (PBS) (pH 7.2). And black soybean was extracted by ethanol or hot boiling water. The immuno-modulatory effects of mixed JW15 and black soybean extract were investigated by measuring the production of nitric oxide (NO), nuclear factor κB (NF-κB) and cytokine (Interleukin-1β and Tumor necrosis factor-α) in RAW 264.7 macrophage cells or RAW blue cells. The 0.1 % ethanol and hot water extract of black soybean increased NO, NF-κB, and cytokine production in a concentration dependent manner. The NF-κB activation by JW15 mixed with 0.1 % hot water extract of black soybean (0.26 ± 0.02) was significantly higher than JW15 alone (0.20 ± 0.02). Also, combination of JW15 and 0.1% hot water extract of black soybean triggered IL-1β production of 110.19 ± 4.38 pg/mL, which was significantly greater than the JW15 alone (12.06 ± 7.58 pg/mL). The results of this study indicate that combination of Weissella cibaria JW15 and black soybean extract may have an ability to activate innate immune response synergistically. According to these results, the mixture of JW15 and black soybean extract could hold great promise for use in probiotics.

Soybean sprouts have been a considered a nutrient-rich vegetable for hundreds of years. To evaluate the seedlot quality of soybean sprouts grown, and to evaluate a method for reducing the presence of improper seeds in soybean seedlots, microbes associated with soybean sprout rot were isolated from samples collected. Morphological characteristics and gas chromatography profiles of the cultured fungal and bacterial strains were identified. Eight types of improper seeds were identified: purple stain(Ps), black rot(Br), seed coat black spot(Cb), wrinkled seed(Ws), brown hilum(Bh), seed coat fracture(Cf), unripe seed(Us), and brown seed coat(Bc). The improper seeds were also dipped into 15%, 20%, and 25% NaCl solutions, as well as a saturated solution of NaCl, for 1min. As the NaCl concentration increased, the number of floating improper seeds increased as well. The highest floating rates were observed for the Cf seeds.

In Brazil, agricultural sector accounts for 15 percent of total employment and agricultural export takes 36 percent of the national merchandise exports. Particularly agricultural export has played an important role in Brazilian economic growth and stabilization. Brazil is a substantial agricultural exporter which obtains huge trade surplus in agricultural trade amounting USD 73,300 million. Major agricultural exports are grain and grain-processed products such as soybean, soybean cake, corn and soybean oil. Particularly soybean is the top exporting commodity in Brazil. Our Study overviews the situation of Brazilian agriculture and analyzes the export competitiveness of Brazilian soybean in the World and Korean markets. We employ several indexes such as price competitiveness, Market Share (MS), Revealed Comparative Advantage Index (RCA), and Comparative Advantage by countries (CAC) to analyze international competitiveness of Brazilian soybean. The main results of our study are as follows : First, U.S. Argentina, Paraguay and Canada are rivals with Brazil in the global soybean market. Second, Brazilian soybean has the 3rd highest price competitiveness following Paraguay and Argentina. Third, Brazilian soybean is second highest following Paraguay in a sense of export competitiveness through RCA and CAC index. Brazilian soybean has competitiveness in respect of comparative advantage not only in Korean market but also in global market. Especially CAC index of Brazilian soybean in the Korean market is higher than those of USA and China which have larger Korean market share than Brazil. However, the competition seems to be even more intensifying because Korea has already agreed on FTA with USA and China, and also Paraguay expands soybean export to Korea recently.

우리나라의 수량에 큰 영향을 미치는 요인을 구명하기 위해콩의 주요 생산지인 파주, 안동 및 무안의 3지역에서 2012년도에서 2014년까지 3개년의 설문 및 현지조사의 자료를 분석한 결과는 다음과 같다. 1. 3지역 3년 전체 중회귀분석 결과를 보면 비닐피복을 하면 ha당 488 kg (23%) 증수를 하였고 논재배가 밭재배 대비ha당 520 kg (24%) 증수를 하였으며 추가관수 1회마다(3회까지) ha당 165 kg씩(7%정도) 증수를 보였다. 2. 수량에 큰 영향을 미치는 저수요인은 지역별 기상조건에 따라 달라지지만 무안, 안동 파주 등 3지역을 3년간 조사한 결과를 대상으로 분석하면 콩의 수량 감수 주요인은 6월과9월의 토양수분 부족이었다.

본 연구는 청국장 제조 시 Bacillus subtilis HJO-2, 18-9와HJ25-8의 3가지 균주를 starter로 접종하여 발효시킨 청국장의품질특성과 Isoflaveone의 함량을 측정하였다. 환원당을 유리하는데 관여하는 α-amylase 효소활성의 경우 Bacillus subtiliHJO-2와 HJ18-9 접종구에서 대조구보다 높은 활성을 보였다.청국장의 단백질을 분해하여 특유의 구수한 맛 성분을 유리는 protease 활성의 경우 Bacillus subtilis HJO-2, 대조구,HJ25-8, HJ18-9의 순으로 높은 활성을 나타내었다. 아미노태질소와 암모니아태질소의 함량은 Bacillus subtilis HJO-2 접종구에서 높았으며, 청국장 isoflavone 비배당체 함량은 Bacillussubtilis HJ18-9과 HJ25-8접종구에서 187.00±2.85, 210.77 ±11.75 μg/g으로 높았다. 이러한 결과로 본 연구를 통해 선별한균주를 스타터로 접종하여 구수한 맛에 관련된 protease, 아미노태질소, 환원당의 높은 값을 기대하기 위해서는 Bacillussubtilis HJO-2를 접종하여 청국장을 제조해야 하며, 체내이용률이 높은 isoflavone aglycone의 값을 기대하기 위해서는Bacillus subtilis HJ18-9과 Bacillus subtilis HJ25-8등으로 제조하는 것이 바람직하다. 청국장 제조에 알맞은 균주를 개발,평가하여 가공품으로 개발의 기초연구가 되고자 하였다.

미이라병은 Diaporthe/Phomopsis complex에 의해 유발되는병으로 콩 재배기간 중 따뜻하고 습한 환경에서 종자가 성숙되면 감염률이 높아지며 감염된 콩 종자는 외관상 품질뿐만아니라 종자 활력이 저하된다. 미이라병에 대한 연구를 수행하기 위하여 대만에 위치한 아시아채소개발연구센터(AVRDC)의 콩 시험포장에서 미이라병 병징을 보이는 콩 줄기를 채집하고 이로부터 3개의 곰팡이 균주(isolate)를 분리하였다. 배지위에서의 곰팡이 균사의 생육특성, 현미경하에서 관찰된 알파,베타 분생자(conidia)의 모양 그리고 PCR-RFLP 분석으로, 3개의 균주는 Diaporthe phaseolorum var. sojae 으로 확인되었다. 한편, 미이라병 저항성 육종을 위해서는 유전자원과 계통의 검정이 선행되어야 하는데, 인공접종을 위해서 분생자의최적 배양조건을 탐색하였다. 그 결과 배지는 PDA, 온도는24oC에서 잘 배양되었으며, 일장은 암조건에서는 균사체만 유도되고 분생자는 유도되지 않았으며, 24시간과 15시간의 일장에서는 균사체 유도 및 분생자의 유도 정도에 차이가 없었다.또한 잎-줄기와 꼬투리, 두 개의 접종 부위에 따른 미이라병감염률을 조사하였는데, 두 접종 부위에 따른 미이라병 감염정도는 통계적인 유의차는 나타나지 않았으나 잎-줄기에 접종한 개체 보다 꼬투리에 접종한 개체의 종자 감염률이 높은 경향을 보였다.

1913년부터 2013년까지 한국에서 육성된 콩 172품종의 생 육 및 수량구성형질의 변이를 평가하고 주성분 분석과 군집 분석을 통하여 품종군을 분류하여 콩 육종의 기초자료로 이용 코자 수행하였다. 생육 및 수량구성형질의 변이계수는 각 형 질에 따라 차이가 있었으며, 엽장폭비, 경장, 분지수, 100립중 및 주당종실중은 높았고, 엽면적, 주경절수, 주당협수 및 주당 립수는 중간정도이었으며, 생육시기에 관련된 개화일수, 성숙 일수 및 생육일수는 낮았다. 콩 품종들의 생육 및 수량구성형 질에 대한 주성분 분석을 한 결과, 주성분의 기여율은 제 1주 성분은 34.02%, 제 2주성분은 18.44%, 제 3주성분은 10.67%, 제 4주성분은 9.96%로, 상위 4주성분까지의 고유값이 1이상 이며, 누적기여율이 73.09%로 제 4주성분까지만 가지고도 한 국 콩 품종의 군집분류가 가능하였다. Average linkage cluster 에 의하여 분류된 군집분류에서 평균 거리를 1.1로 하였을 때 5개 군집으로 분류되었고, I군집은 전체 품종의 69.7%가 속해 있는 가장 큰 군집이었고, 다음으로 II군집이 19.8%가 속하는 큰 군집이었고, 그 다음으로 IV군집이 8.7%가 속하였으며, III 군집과 V군집은 1 ~ 2품종이 속하는 소군집이었다. 각 군집의 품종을 육성년대(1980년 이전, 1980년대, 1990년대, 2000년 이후) 및 용도별(장류 및 두부용, 나물용, 밥밑용, 풋콩 및 올 콩용)로 분류하면 품종의 분포가 차이가 있었다. 육성년대별로 는 1980년 이전과 1980년대에 육성된 품종은 I과 II군집에, 1990년대와 2000년 이후에 육성된 품종은 모든 군집에 넓게 분포하였다. 용도별로는 I군집에는 장류 및 두부용 품종이, II 군집에는 나물용 품종이, IV군집에는 풋콩 및 올콩용 품종이 가장 많이 속하였으며, III과 V군집에 속하는 품종은 나물용 품종이었다.

성숙 콩 종실에 함유되어져 있는 raffinose와 stachyose 성분은 난분해성 올리고당이며, 인체 내에서는 분해 및 흡수가 되지 않고 장내 가스나 소화불량을 일으킨다. Raffinose와 stachyose의 함량이 적은 콩 계통을 육성하기 위한 기초 정보를 얻기 위하여 59개의 유전자형을 이용하여 2년간 포장에서 재배한 후 raffinose와 stachyose의 함량을 분석하였다. Raffinose의 2년간 평균 함량은 3.353~10.271g/kg의 범위를 보였고 육종계통 Da-7에서 가장 낮았으며 PI506592 유전자원이 가장 높은 값을 보였으며 59개 유전자형에 대한 평균값은 5.035g/kg으로 나타났다. Stachyose의 2년간 평균 함량은 2.468~36.745g/kg의 범위를 보였고 육종계통 10S31에서 가장 낮았으며 PI283327 유전자원이 가장 높은 값을 보였으며 59개 유전자형에 대한 평균값은 17.222g/kg으로 나타났다. Raffinose 성분은 3.6~7.2g/kg의 범위에서 52개의 유전자형이 분포하였고, stachyose 성분에서는 12~24g/kg의 범위에서 39개의 유전자형이 분포하였다. Raffinose의 함량에서는 년차간 부의 상관관계를 보였고, stachyose의 함량에서는 년차간 정의 상관관계를 보였다. Raffinose와 stachyose의 함량간에는 정의 상관관계을 보였다.

본 연구는 밥밑용 검정콩의 식미에 관련된 선발 지표를 탐색하고자 품종과 재래종을 이용하여 이화학적 특성을 분석하고 비교하였다. 검정콩 종실의 길이는 7.73 ~ 9.99 mm, 너비는 7.13 ~ 8.50 mm, 그리고 두께는 5.06 ~ 7.03 mm의 범위였다. 밥밑용 검정콩 품종과 재래종 종실의 색도를 측정한 결과 명도는 14.48 ~ 19.98, 적색도는 –0.22 ~ 0.09, 황색도는 –0.57 ~ 1.05 범위였다. 밥밑용 검정콩의 조단백 함량은 32.2 ~ 36.9%, 조지방 함량은 11.7 ~ 18.6%, 조섬유 함량은 3.99 ~ 4.50%, 조회분 함량은 4.98 ~ 5.95% 범위였다. 관능평가 결과 종합적 기호도에서 가장 좋은 평가를 받은 것은 청자콩이었고 가장 낮은 것은 IT177445이었다. IT177445는 단맛이 가장 약하였는데, 비린맛은 많이 강하고 고소한 맛은 약해 종합적 기호도에서 가장 낮은 평가를 받았다. 본 연구에서 이용한 자원의 종실 길이, 너비 및 두께는 종합적 기호도와 정의 상관을 나타내었고, 조섬유 함량과는 부의 상관을 나타내었다. 종합적 기호도는 조단백 함량(−0.54*) 및 조섬유 함량(−0.73**)과는 부의 상관을 보였다. 외관적 기호도를 제외한 씹힘성(0.73**), 단맛(0.82***), 비린맛(0.86***) 그리고 고소한맛(0.89***)은 종합적 기호도에 유의한 정의 상관을 나타내었으나, 단맛(−0.54*), 비린맛(−0.55*) 그리고 고소한맛(−0.80***)은 조섬유 함량과 유의한 부의 상관을 나타내었다.

Recent growing about global warming has led to increase the need for low-carbon, green growth policy at the agricultural sectors and interest in the environmental-friendly and organic products. Therefore, Korea government has decided to reduce the use of chemical fertilizer at the farm field up to 40% and in order to attain this goal, promoting to grow green manure crops has been taken into positive consideration in terms of maintaining soil fertility and preventing soil loss. To this result, the acreage to cultivate green manure crops has been sharply increased from 4,000ha in 1998 to 225,000ha in 2012. Regarding environment-friendly agriculture, bulk of rice straw should be incorporated into the paddy just after harvest as soil cover materials and also green manure crops, such as chinese milk vetch, rye, Hairy vetch and so on have been recommended to be grown annually as soil cover crops. General sowing process of a certain seed crop at the farm field consists of plowing, harrowing, seeding, covering up seeds with soil in order. This process at the field has been known to take relatively long time and even not to be equal at the seeding depth. For this reasons, new seeding technology has been continuously required by farmers. Partial-tillage seeder consisting of dressing furrow and seeding parts enable to overcome germination barriers. Two soybean cultivars, ‘Taekwang’ and ‘Shingi’ were used to test the performance of newly-developed seeder and its establishment rate showed around 70 ~ 90% with given interval of embedded soybeans. Furthermore, the partial tillage technology applicable to the soybean field could reduce labor cost by 69% as well as 22% of the fuel consumption and also promote soybean productivity per unit area.

작물재배에 있어서 관행 스프레이 처리에 의한 병해충방제는 노동집약적, 농약중독 그리고 작업 기피성 등으로 문제가 되어 왔다. 이러한 작업 개선을 위하여 수도작 방제용으로 도입된 농업용 무인헬기의 활용도가 낮아 경제성 확보를 위해 방제 대상 작물의 다양화와 더불어 다양한 농작업에 그 활용성을 확대할 필요가 있다. 따라서 본 연구는 무인헬기의 활용성에 대한 다양화를 위하여 무인헬기를 이용한 콩재배포장에서의 해충방제 연구를 통하여 해충방제용으로 농업용 무인헬기의 활용가능성에 대한 효과를 검증하고자 수행하였다. 담배거세미나방의 방제를 위하여 에토펜프록스를 두 시기에 걸쳐 고농도저약량(8배 희석)으로 농업용 무인헬기로 방제하였고, 관행방제는 경운기 부착용 동력분무기로 약제를 1,000배로 희석하여 처리하였다. 그 결과 농업용 무인헬기방제는 관행방제와 같은 방제효과를 보였고 고농도 저약량처리의 무인헬기방제에서도 약해의 증상은 나타나지 않았으며 방제비용을 37% 절감하고 노동시간도 90%를 줄일 수 있었다.

Riptortus pedestris (F.) (Hemiptera: Alydidae) is an important pest of soybeans in Korea and Japan. A synthetic aggregation pheromone trap has been commercialized and used in soybean fields in Korea for both monitoring and mass-capture of this bug. As the trap’s efficacy in reducing the pest population or crop damage is unknown, in this study we evaluated the aggregation pheromone trap in experimental soybean fields located in Andong National University. Two treatments, one with traps deployed for the entire cultivation period and one with no traps, were tested in six small experimental fields. The total numbers of R. pedestris (in all life stages) in soybean field were not significantly different between the treatments until August. But, in presence of pheromone, the pest’s abundance increased significantly in September and October. Relative to the size of the bug population in the field, trap catch rate was low during the fall (when bug density was highest) and high in early summer when the field population was very low. Placement of aggregation traps in plots caused pod and seed damage from R. pedestris to increase 2.7 and 2.2 times compared to the control. In conclusion, R. pedestris populations increased significantly during the fall in the presence of the aggregation pheromone trap, which should therefore be used with great caution whether as a control measure or as a monitoring tool.