They have multiple ovules per receptacle where the fruit is formed. However, the most common cause is a lack of pollinators, such as domestic and wild bees, during the flowering period. You will see these as “seeds” on the outside of the strawberry fruit which are called achenes. Most commonly, misshapen strawberries during spring result from poor pollination. Small seedy fruit and uneven growth are symptoms of poor pollination. Another issue may have been pollination. The strawberry receptacle may have up to 500 ovules per berry. Strawberries that are lobed, especially seedy and juiceless on one section, and lopsided are likely improperly pollinated. More information: Chapter 7 Small Fruits and Brambles: Strawberry Pollination (pages 679-688 in: USDA Insect Pollination of … A minimum of ten plants is good, but twenty will be better. Hand pollinate with a paintbrush if needed. Although raspberry flowers are self pollinating, bee activity is still responsible for 90-95% of pollination. This could be caused by poor pollination or even very windy conditions as fruit set occurs. Lygus bugs are one of the causes of irregularly shaped, cat-faced strawberries; another cause may be poor pollination, which results in small undeveloped seeds. Strawberries are aggregate fruits. Strawberries are self-pollinating but form better fruits when a (ontinued on page 5) Poor Pollination Above is an example of a parthenocarpic Poor pollination. Poor pollination. Although raspberry flowers are self pollinating, bee activity is still responsible for 90-95% of pollination. Poor pollination is often very common in the first picking of spring fruiting strawberries in the southeast, when weather is often less suitable to bee activity. The first reason is the most likely and has to do with lack of pollination. Deformed berries are often due to poor pollination. This is also discussed in Dr. Burrack’s blog: “ Lygus feeding does result in variable seed size and can, therefore, be distinguished from poor pollination in strawberries.” (Fig. 4) Fig. 4. Also the more plants you have, the better the chances of pollination and a prolific harvest. Poorly pollinated berries tend to be small with a rough, dimpled, seedy appearance similar to that of boron deficiency. Strawberries can form misshapen fruits if inadequate pollination occurs. Periods of cool rainy weather were common in early May during the early bloom period. Cold temperatures, rainy and windy weather can slow bee activity, so you might not get as many pollinations if the flowers are blooming at an inopportune time. But, yes, there is no doubt a reason for misshapen strawberries like these. There are many causes of poor formation and misshaping of raspberry fruit, including bad weather, genetics or viruses. Lygus feeding results in variable seed size Bees are the best pollinators of strawberries, so encourage them to take up residence in your yard. There are many causes of poor formation and misshaping of raspberry fruit, including bad weather, genetics or viruses. There are three reasons for deformity in strawberries with a possible fourth put forward for discussion: Poor pollination. Poor pollination may have contributed to low set in some locations. However, the most common cause is a lack of pollinators, such as domestic and wild bees, during the flowering period. Lygus bugs damage fruit by puncturing individual seeds; this, in turn, stops development of the berry in the area surrounding the feeding site. 3, had a question about lygus injury. The same grower who sent the photo in Fig. The first reason is the most likely and has to do with lack of pollination. 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