SC Grower Weekly Report | May 15, 2023

In the Coastal region, squash, and cukes continue to be harvested in heavy volumes.
In the Midlands, squash are fairing well with a few squash bugs here and there. The biggest problem so far has been wind damage and breakage.
In the Pee Dee region, Summer crops (peppers, tomatoes, watermelon, cucumbers, squash, sweet corn, etc.) are growing well and are still being planted heavily.

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CucCAP scientists examine mechanisms of watermelon resistance to viral infection

Watermelon production in the U.S. and around the world faces serious threats by viral diseases, including aphid-transmitted potyviruses: papaya ringspot virus (PRSV) and zucchini yellow mosaic virus (ZYMV). In a recent study, a CucCAP team examined expression of anti-microbial/anti-viral, ribosome-inactivating proteins (RIPs) in watermelons in response to inoculation with PRSV.  The PRSV-resistant citron watermelon (Citrullus amarus) exhibited high RIP expression, versus low expression in plants of the susceptible, cultivated “Charleston Gray” watermelon. This finding may offer additional genetic and genomic resources for improving potyvirus-resistance in watermelon cultivars.

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