The present invention relates to a pest insect repellent and agricultural land improvement agent and a method of producing the same. It is an object of the present invention to provide an insecticidal insect repellent agent which is excellent in prevention and prevention function against various pests, and an agricultural land improvement agent which improves and maintains the continuous ability of the soil to grow and a method for producing the same. A method for producing a pest insect repellent agent, the method comprising the steps of: collecting leaves collected from at least three or more selected from ginkgo, pine, To obtain an extract mixture. The extract mixture is mixed with a wood vinegar solution and aged at room temperature for 3 days or more to obtain an insect repellent agent. In addition, in the method for producing the agricultural growth modifying agent, the step of preparing the insect pest controlling agent and the step of mixing the microorganism mixture containing the fermenting microorganism, the antibacterial microorganism and the photosynthetic microorganism with the insect pest controlling agent for aging for more than one day . As a result, the environment improvement function is improved and the acidified soil is restored, and the production amount of farmland is increased. The present invention also provides a feed insect repellent agent having excellent prevention and prevention functions against various pests, a method for producing the insect pest repellent agent, and a method for producing the same.본 발명은 유해충균기피제 및 농지개량제와 이들의 제조방법에 관한 것이다. 본 발명의 목적은 다양한 병해충에 대한 방지 및 예방 기능이 우수한 유해충균기피제 및 토양의 지속적인 자생능력을 향상시키며 유지하는 농지개량제와 그의 제조방법에 관한 것이다. 유해충균기피제의 제조방법에 있어서, 은행나무, 소나무, 편백나무, 측백나무, 구상나무, 삼나무, 전나무, 잣나무, 대나무로 이루어진 그룹 중에서 선택된 적어도 어느 셋 이상의 생육상태에서 채취된 나뭇잎을 알코올에 실온에서 3일 이상 침지하여 추출혼합물을 얻는 단계 상기 추출혼합물에 목초액을 혼합하여 실온에서 3일 이상 숙성시켜 유해충균기피제를 얻는 단계를 포함하는 것을 특징으로 한다. 또한, 농지개량제의 제조방법에 있어서, 유해충균기피제를 준비하는 단계와 발효미생물, 항균미생물 및 광합성미생물을 포함하는 미생물 혼합물을 상기 유해충균기피제
