Activity 7 Aphids Reproduction Directions. Using the diagram, complete the statement below by choosing from the choices. Write your answer in the blank. Condition A Aphids can reproduce asexually when condition are stable and favorable during early springs, they can produce clones through ________________. (parthenogenesis; budding) Condition B In autumn, plants prepare for dormancy, food becomes scarce then aphids switch to reproductive modes to produce by _______________ means. (sexual, asexual) With source of food Scarcity of food