How to Manage Pests

Pests in Gardens and Landscapes

Rhizopus rot (Leak)— Rhizopus spp.

Fruit with Rhizopus rot soften rapidly and collapse, leaking their contents. Under humid conditions, fluffy white mycelium forms on the surface of decayed fruit.

Identification | Life cycle

Solutions

Fruit decays can be kept to a minimum by using raised beds, plastic mulch to keep fruit from touching the soil, and drip or furrow irrigation to keep water off the foliage and fruit. Most important is to make sure plants are spaced far enough apart that there is good air circulation around the fruit. Dense plantings make a damp environment that favors fruit decay. In cooler locations, you can improve the air circulation around plants and fruit and reduce fruit disease problems by using stepped planter boxes that allow fruit to hang down over the sides. If sprinklers are used for strawberries, always water in the morning so that plants will dry off during the day.

Mycelium on Rhizopus infected fruit
Mycelium on Rhizopus infected fruit

Leaking of contents by infected fruit
Leaking of contents by infected fruit


Statewide IPM Program, Agriculture and Natural Resources, University of California
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Agriculture and Natural Resources, University of California

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